#include<iostream>
using namespace std;
int main(){
    int a=20;
    int b=40;
    int c=60;
    if(a>b||a>c){
        cout<<"a is gretaer"<<endl;
    }
    if else(b>c||b>a){
        cout<<"b is greater"<<endl;
    }
     else{
        cout<<"c is greater"<<endl:
    }
    return 0;
}