#include <stdio.h>

int main(void)
{
    char a[11];
    scanf("%s", a);
    
    if(a[0] != a[1] != a[2] != a[4] != a[5] != a[6] != a[7] != a[8] != a[9] != a[10]){
        printf("YES\n");
    }
    else{
        printf("NO\n");
    }
}