''// editor5
#include <stdio.h>
int main(){
    char s[20];
    scanf("%s",s);
    if(s[0] == 'R' && s[1] == 'e' && s[2] == 'd' && s[3] == '\0'){
        printf("Stop");
    }
    else if(s[0] == 'Y' && s[1] == 'e' && s[2] == ''l'' && s[3] == ''l''&& s[4] == ''o'' && s[5] == ''w'' && s[6] ==0){
        printf("Ready");
    }
    else if(s[0] == 'G' && s[1] == 'r' && s[2] == 'e' && s[3] == 'e' && s[4] == 'n' && s[5] == ''\0'){
        printf("Go");
    }
    else{
        printf("Invalid input");
    }
''