Submission #942437

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Source Code Expand

#include <iostream>
#include <string>
int main(void){
	std::string s;
	std::cin>>s;
	bool cflag=false,fflag=false;
	for(int i=0;i<s.length();i++){
		if(s[i]=='C'){
			cflag=true;
		}
		if(cflag){
			if(s[i]=='F'){
				fflag=true;
			}
		}
	}
	if(cflag && fflag){
		std::cout<<"Yes"<<std::endl;
	}else {
		std::cout<<"No"<<std::endl;
	}
	return 0;
}

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