#include <iostream>
#include <cstdio>
#include <string>
#include <cassert>

using namespace std;

signed main(){
    FILE * fp = fopen("./catch.o","r");
    //assert(fp != nullptr);
    string s;
    char c;
    while((c = getc(fp)) != EOF) s += c;
    auto pos = s.find("FLAG");
    //assert(pos != string::npos);
    //dump(pos);
    string flag;
    while(pos < s.size() && isprint(s[pos])){
        flag += s[pos];
        pos++;
    }
    cout << flag << endl;
}