func_code_string: #include <bits/stdc++.h>   using namespace std;   string s, s1, s2, q =  rock , w =  paper , e =  scissors ;   int main() {     cin >> s >> s1 >> s2;     if (s != s1 && s1 == s2 && s == q && s1 == e ||         s != s1 && s1 == s2 && s == w && s1 == q ||         s != s1 && s1 == s2 && s == e && s1 == w)       cout <<  F ;     else if (s1 != s && s == s2 && s1 == q && s == e ||              s1 != s && s == s2 && s1 == w && s == q ||              s1 != s && s == s2 && s1 == e && s == w)       cout <<  M ;     else if (s2 != s && s == s1 && s2 == q && s == e ||              s2 != s && s == s1 && s2 == w && s == q ||              s2 != s && s == s1 && s2 == e && s == w)       cout <<  S ;     else       cout <<  ? ;   }   