#include <bits/stdc++.h>
using namespace std;
int main() {
double N = 1.3333337;
printf("%.6lf\n",N);
//cout << fixed;
//cout << setprecision(6) << N;
return 0;
}
I2luY2x1ZGUgPGJpdHMvc3RkYysrLmg+Cgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CiAgICBkb3VibGUgTiA9IDEuMzMzMzMzNzsKICAgIHByaW50ZigiJS42bGZcbiIsTik7CgogICAgLy9jb3V0IDw8IGZpeGVkOwogICAgLy9jb3V0IDw8IHNldHByZWNpc2lvbig2KSA8PCBOOwoKICAgIHJldHVybiAwOwp9Cg==