Submission #3427905

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Source Code Expand

// by DEADFISH
#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cmath>
#include<cstring>
#define p 1e6+7
#define N 10010
#define mc(a,b) memset(a,b,sizeof(a))
#define close std::ios::sync_with_stdio(false)
using namespace std;
typedef long long ln;
string s; 
int main()
{
	cin>>s;
	int len=s.length();
	bool flag=false;
	for(int i=0;i<len;i++)
	{
		if(s[i]=='C') for(int j=i;j<=len;j++)
		{
			if(s[j]=='F') flag=1;
		}
	}
	if(flag) cout<<"Yes";
	else cout<<"No";
	return 0;
}

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