#include<stdio.h>

int main()
{
    int x = 0,y = 0;
    while(1)
    {
        scanf("%d %d", &x , &y);

        if(x > y)
            printf("%d\n", x);
        else if(x < y)
            printf("%d\n", y);
        else
        {
            printf("x = y\nexit\n");
            break;
        }
    }

    return 0;
}