Submission #1890901

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Source Code Expand

#include <iostream>
#include <algorithm>
#include <array>
#include <cstdint>
#include <functional>
#include <map>
#include <math.h>
#include <queue>
#include <set>
#include <stdlib.h>
#include <string>
#include <utility>
#include <vector>
 
#define INF 1000000000
#define MOD 1000000007
#define rep(i,a,b) for(uint32 i = (a); i < (b); ++i)
#define bitget(a,b) (((a) >> (b)) & 1)
#define ALL(x) (x).begin(),(x).end()
#define C(x) std::cout << #x << " : " << x << std::endl
#define scanf scanf_s
 
using int32 = std::int_fast32_t;
using int64 = std::int_fast64_t;
using uint32 = std::uint_fast32_t;
using uint64 = std::uint_fast64_t;
 
 
 
int main(void) {
	std::ios::sync_with_stdio(false);
	std::cin.tie(0);
	std::string s;
	std::cin >> s;
	uint32 f = 0;
	rep(i, 0, s.length()) {
		if (f) {
			if (s[i] == 'F') {
				std::cout << "Yes\n";
				return 0;
			}
		}
		else {
			if (s[i] == 'C') {
				f = 1;
			}
		}
	}
	std::cout << "No\n";
	return 0;
}

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