Submission #941954

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Source Code Expand

#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <cmath>
#include <vector>
#include <map>
#include <set>
#include <algorithm>

using namespace std;

typedef long long ll;

int main() {
	string s;
	cin >> s;
	bool f = false;
	for (int i = 0; i < s.size(); i++) {
		if (s[i] == 'C') {
			f = true;
		}
		if (s[i] == 'F' && f) {
			cout << "Yes\n";
			return 0;
		}
	}
	cout << "No\n";
}

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