看不懂了，这段代码错哪了？

#include<bits/stdc++.h>
using namespace std;
int n;
string a,b; 
int main()
{   
    int n;
    cin>>n;
    for(int i=0;i<n;i++){
    	cin>>a>>b;
    	if((a[0]=='R'&&b[0]=='R')||(a[0]=='S'&&b[0]=='S')||(a[0]=='P'&&b[0]=='P')){
    		cout<<"Tie\n";
		}
		else if((a[0]=='R'&&b[0]=='S')||(a[0]=='S'&&b[0]=='P')||(a[0]=='P'&&b[0]=='R')){
    		cout<<"Player1\n";
		}
		else if((b[0]=='R'&&a[0]=='S')||(b[0]=='S'&&a[0]=='P')||(b[0]=='P'&&a[0]=='R')){
    		cout<<"Player22\n";
		}
	}
    return 0;
}