杭电5670

#include <iostream>#include <cstdio>using namespace std;int main(){int T,i;int m;string a;long long n,num;scanf("%d",&T);while(T--){a="";scanf("%d%I64d",&m,&n);i=m;while(i>=1){num=n%3;if(num==0){a="R"+a;}else if(num==1)a="G"+a;else a="B"+a;n=n/3;i--;}cout<<a<<endl;}return 0;}