#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

struct point2d { int x;
				 int y;
			   };

int main()
{
	int i = 0;
	int max = 0;
	struct point2d tableau[3];

	printf("Rentrez les points.\n");

	for (i ; i < 3 ; i++)
		scanf("%d %d", &tableau[i].x, &tableau[i].y);

	for (i = 0 ; i < 3 ; i++)
	{
			if (max <= tableau[i].y)
				max = tableau[i].y;
	}

	printf("\n%d", max);

	

	getch();

return 0;
}