Submission #1229193

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Source Code Expand

#include"bits/stdc++.h"
using namespace std;
int main(){
	char cur='a';
	string a,b,c;
	cin>>a>>b>>c;
	while(1){
		if(cur=='a'){
			if(!a.size()){
				cout<<'A';
				return 0;
			}
			cur=a[0];
			a.erase(0,1);
		}
		else if(cur=='b'){
			if(!b.size()){
				cout<<'B';
				return 0;
			}
			cur=b[0];
			b.erase(0,1);
		}
		else{
			if(!c.size()){
				cout<<'C';
				return 0;
			}
			cur=c[0];
			c.erase(0,1);
		}
	}
}

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