PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students kneel with their hands on heads as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students kneel with their hands on heads as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students kneel with their hands on heads as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM

PARIS, FRANCE - DECEMBER 18: French high school students hold placards as they gather to march Descartes Street from Republique Square for political measures against high living costs, in Paris, France on December 18, 2018. Yusuf Ozcan / Anadolu Agency/ABACAPRESS.COM