A woman takes leaflets at a campaign tent decorated with signs meaning to stop "Ze" - in reference of the presidential candidate Volodymyr Zelensky - on Independence Square in Kiev on April 12, 2019. - Ukrainian comedian Volodymyr Zelensky, a political novice and favourite to win Kiev's presidential vote, will head to Paris on April 12, 2019 to meet French President. (Photo by Sergei SUPINSKY / AFP)

A girl writes "Save Ukraine" and signs meaning to stop "Ze" - in reference of the presidential candidate Volodymyr Zelensky - on a tent set by Zelensky's opponents on Independence Square in Kiev on April 12, 2019. - Ukrainian comedian Volodymyr Zelensky, a political novice and favourite to win Kiev's presidential vote, will head to Paris on April 12, 2019 to meet French President. (Photo by Sergei SUPINSKY / AFP)

A girl writes "Save Ukraine" and signs meaning to stop "Ze" - in reference of the presidential candidate Volodymyr Zelensky - on a tent set by Zelensky's opponents on Independence Square in Kiev on April 12, 2019. - Ukrainian comedian Volodymyr Zelensky, a political novice and favourite to win Kiev's presidential vote, will head to Paris on April 12, 2019 to meet French President. (Photo by Sergei SUPINSKY / AFP)

A woman gives out leaflets to passersby outside of the incumbent presidential campaigning tent, decorated with signs that reads 'Stop' or 'Ze', a pun on the name of opposition presidential candidate comedian Volodymyr Zelensky, on Independence Square in Kiev on April 12, 2019. - While many dismissed as a joke his bid to lead Ukraine -- a country at war with Moscow-backed rebels -- Ukrainian comedian Volodymyr Zelensky defeated President Petro Poroshenko in the presidential vote's first round. Polls predict he will also win the election's run-off on April 14. Zelensky will head to Paris on April 12, to meet French President Emmanuel Macron. (Photo by Sergei SUPINSKY / AFP)

A girl paints on the incumbent presidential campaigning tent, the words 'Save Ukraine' and the sign that reads 'Stop' or 'Ze', a pun on the name of opposition presidential candidate Volodymyr Zelensky, placed on Independence Square in Kiev on April 12, 2019. - While many dismissed as a joke his bid to lead Ukraine -- a country at war with Moscow-backed rebels -- Ukrainian comedian Volodymyr Zelensky defeated President Petro Poroshenko in the presidential vote's first round. Polls predict he will also win the election's run-off on April 14. Zelensky will head to Paris on April 12, to meet French President Emmanuel Macron. (Photo by Sergei SUPINSKY / AFP)