#include<stdio.h>
#include<string.h>
int main(){
    char a[20]="Red";
    char b[20]="Yellow";
    char c[20]="Green";
    char signal[20];
    int res;
    scanf("%s",signal);
    int res1=strcmp(a,signal);
    int res2=strcmp(b,signal);
    int res3=strcmp(c,signal);
    printf(%d",res1);
   
    
    
    
    return 0;
}