#include <stdio.h>

int main() 
{
    int x,y,z;
    int a,b,c;
    scanf("%d %d %d",&x,&y,&z);
    scanf("%d %d %d",&a,&b,&c);
    if((x<a)||(x==a&&(y<b||(y==b&&z<=c))))
    printf("yes");
    else
     printf("no");
    return 0;
}