Bosnia's member of tripartite presidency Milorad Dodik shakes hands with Serbia's President Aleksandar Vucic during a news conference, following the donation of a batch of vaccines against the coronavirus disease (COVID-19), at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Bosnia's member of tripartite presidency Sefik Dzaferovic bumps fists with Serbia's President Aleksandar Vucic during a news conference, following the donation of a batch of vaccines against the coronavirus disease (COVID-19), at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Bosnia's members of tripartite presidency Milorad Dodik and Sefik Dzaferovic stand next to Serbia's President Aleksandar Vucic during a news conference, following the donation of a batch of vaccines against the coronavirus disease (COVID-19), at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's President Aleksandar Vucic and Bosnia's members of tripartite presidency Sefik Dzaferovic, Milorad Dodik and Zeljko Komsic hold a joint news conference, following the donation of a batch of vaccines against the coronavirus disease (COVID-19) by Serbia's President Vucic, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Bosnia's member of tripartite presidency Milorad Dodik attends a news conference, following the donation of a batch of vaccines against the coronavirus disease (COVID-19) by Serbia's President Aleksandar Vucic, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Bosnia's members of tripartite presidency Sefik Dzaferovic, Milorad Dodik and Zeljko Komsic attend a news conference, following the donation of a batch of vaccines against the coronavirus disease (COVID-19) by Serbia's President Aleksandar Vucic, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic attends a news conference at Sarajevo International Airport after donating a batch of coronavirus vaccines, in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic speaks during a news conference after donating a batch of coronavirus vaccines, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic speaks during a news conference after donating a batch of coronavirus vaccines, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic speaks during a news conference after donating a batch of coronavirus vaccines, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Boxes containing vaccines against the coronavirus disease (COVID-19) donated by Serbia's president Aleksandar Vucic are unloaded from a plane at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

A vehicle transports boxes containing vaccines against the coronavirus disease (COVID-19) donated by Serbia's president Aleksandar Vucic, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

A worker stands next to boxes containing vaccines against the coronavirus disease (COVID-19) donated by Serbia's president Aleksandar Vucic, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic stands in the middle of Bosnia's members of tripartite presidency Sefik Dzaferovic and Milorad Dodik, as he donates a batch of coronavirus vaccines for the country, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic arrives at Sarajevo International Airport to donate a batch of coronavirus vaccines for the country, in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic speaks with Bosnia's members of tripartite presidency Sefik Dzaferovic and Milorad Dodik, during the donation of a batch of coronavirus vaccines for the country, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic stands in the middle of Bosnia's members of tripartite presidency Sefik Dzaferovic and Milorad Dodik, as he donates a batch of coronavirus vaccines for the country, at Sarajevo International Airport in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

Serbia's president Aleksandar Vucic and Bosnia's member of tripartite presidency Milorad Dodik hug each other at Sarajevo International Airport during the donation of COVID-19 vaccines to Bosnia, in Sarajevo, Bosnia and Herzegovina, March 2, 2021. REUTERS/Dado Ruvic

A representation of virtual currency Ethereum and U.S. One Dollar banknote are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

A representation of virtual currency Ethereum are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

A representation of virtual currency Ethereum are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

A representation of virtual currency Ethereum and U.S. One Dollar banknote are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

A representation of virtual currency Ethereum are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

A representation of virtual currency Ethereum and U.S. One Dollar banknote are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

A representation of virtual currency Ethereum are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

A representation of virtual currency Ethereum are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

A representation of virtual currency Ethereum are seen in front of a stock graph in this illustration taken February 19, 2021. REUTERS/Dado Ruvic/Illustration

Facebook logo and Australian flag are displayed in this illustration taken, February 18, 2021. REUTERS/Dado Ruvic/Illustration

Google and Facebook logos and Australian flag are displayed in this illustration taken, February 18, 2021. REUTERS/Dado Ruvic/Illustration

Google and Facebook logos, words "media, news, media" and Australian flag are displayed in this illustration taken, February 18, 2021. REUTERS/Dado Ruvic/Illustration

Google and Facebook logos, words "media, news, media" and Australian flag are displayed in this illustration taken, February 18, 2021. REUTERS/Dado Ruvic/Illustration

Google logo and Australian flag are displayed in this illustration taken, February 18, 2021. REUTERS/Dado Ruvic/Illustration

Selmo Cikotic, Minister of Security of Bosnia and Herzegovina and European Union's home affairs commissioner Ylva Johansson are seen in a migrant camp Lipa near Bihac, Bosnia and Herzegovina, February 18, 2021. REUTERS/Antonio Bronic

The European Union's home affairs commissioner Ylva Johansson speaks to media in front of a migrant camp Lipa near Bihac, Bosnia and Herzegovina, February 18, 2021. REUTERS/Antonio Bronic

Migrants are seen in a migrant camp Lipa near Bihac, Bosnia and Herzegovina, February 18, 2021. REUTERS/Antonio Bronic

Migrants are seen in front of a migrant camp Lipa near Bihac, Bosnia and Herzegovina, February 18, 2021. REUTERS/Antonio Bronic

Migrants are seen in a migrant camp Lipa near Bihac, Bosnia and Herzegovina, February 18, 2021. REUTERS/Antonio Bronic

General view of a migrant camp Lipa near Bihac, Bosnia and Herzegovina, February 18, 2021. Picture taken with a drone. REUTERS/Antonio Bronic

General view of a migrant camp Lipa near Bihac, Bosnia and Herzegovina, February 18, 2021. Picture taken with a drone. REUTERS/Antonio Bronic

Huuuge logo and a stock graph are displayed in this illustration taken February 18, 2021. REUTERS/Dado Ruvic/Illustration

Huuuge logo is seen in this illustration taken February 18, 2021. REUTERS/Dado Ruvic/Illustration

A 3D printed Facebook logo is seen in front of displayed Australia's flag in this illustration photo taken February 18, 2021. REUTERS/Dado Ruvic/Illustration

A 3D printed Facebook logo is seen in front of displayed Australia's flag in this illustration photo taken February 18, 2021. REUTERS/Dado Ruvic/Illustration

A 3D printed Facebook logo is seen in front of displayed Australia's flag in this illustration photo taken February 18, 2021. REUTERS/Dado Ruvic/Illustration

A 3D printed Facebook logo is seen in front of displayed Australia's flag in this illustration photo taken February 18, 2021. REUTERS/Dado Ruvic/Illustration

3D printed Lady Justice figure is seen in front of displayed EU flag and Epic Games logo in this illustration photo taken February 17, 2021. REUTERS/Dado Ruvic/Illustration

3D printed Lady Justice figure is seen in front of displayed Apple and Epic Games logos in this illustration photo taken February 17, 2021. REUTERS/Dado Ruvic/Illustration

3D printed Lady Justice figure is seen in front of displayed Apple and Epic Games logos in this illustration photo taken February 17, 2021. REUTERS/Dado Ruvic/Illustration

3D printed Lady Justice figure is seen in front of displayed Apple and Epic Games logos in this illustration photo taken February 17, 2021. REUTERS/Dado Ruvic/Illustration

3D printed Lady Justice figure is seen in front of displayed Apple and Epic Games logos in this illustration photo taken February 17, 2021. REUTERS/Dado Ruvic/Illustration

The Bumble logo is seen on a smartphone in front of a stock graph in this illustration taken February 11, 2021. REUTERS/Dado Ruvic/Illustration REFILE - CORRECTING BRAND NAME

The Bumble logo is seen on a smartphone in front of a stock graph in this illustration taken February 11, 2021. REUTERS/Dado Ruvic/Illustration REFILE - CORRECTING BRAND NAME

The Bumble logo is seen on a smartphone in front of a stock graph in this illustration taken February 11, 2021. REUTERS/Dado Ruvic/Illustration REFILE - CORRECTING BRAND NAME

A 3d printed Twitter logo is seen in front of displayed Koo app logo in this illustration taken, February 10, 2021. REUTERS/Dado Ruvic/Illustration

Twitter logo is seen on smartphone in front of displayed Koo app logo in this illustration taken, February 10, 2021. REUTERS/Dado Ruvic/Illustration

Twitter and Koo app logos are seen on smartphone in this illustration taken, February 10, 2021. REUTERS/Dado Ruvic/Illustration

Small toy figures are seen in front of displayed Koo app logo in this illustration taken, February 10, 2021. REUTERS/Dado Ruvic/Illustration

A 3d printed Twitter logo is seen in front of displayed Koo app logo in this illustration taken, February 10, 2021. REUTERS/Dado Ruvic/Illustration

A 3d printed Twitter logo is seen in front of displayed Koo app logo in this illustration taken, February 10, 2021. REUTERS/Dado Ruvic/Illustration

Representation of cryptocurrency is seen in front of a Kucoin logo in this illustration taken on February 9, 2021. REUTERS/Dado Ruvic/Illustration