Submission #1372828

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Source Code Expand

# include <iostream>
# include <algorithm>
# include <vector>
# include <string>
# include <set>
# include <cmath>
# include <iomanip>
# include <functional>
# include <utility>
# define MOD 1000000000+7
# define INF 1000000000
using namespace std;

int main() {
	string a, b, c;
	cin >> a >> b >> c;
	int turn = 1;
	while (true) {
		if (turn == 1) {
			if (a.size() == 0) {
				cout << "A" << endl;
				break;
			}
			if (a[0] == 'b')turn = 2;
			if (a[0] == 'c')turn = 3;
			a.erase(a.begin());
		}
		if (turn == 2) {
			if (b.size() == 0) {
				cout << "B" << endl;
				break;
			}
			if (b[0] == 'a')turn = 1;
			if (b[0] == 'c')turn = 3;
			b.erase(b.begin());
		}
		if (turn == 3) {
			if (c.size() == 0) {
				cout << "C" << endl;
				break;
			}
			if (c[0] == 'a')turn = 1;
			if (c[0] == 'b')turn = 2;
			c.erase(c.begin());
		}
	}
}

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