func_code_string: #include <bits/stdc++.h>   using namespace std;   struct __s {     __s() {       if (1) {         ios_base::Init i;         cin.sync_with_stdio(0);         cin.tie(0);       }     }     ~__s() {       if (!1)         fprintf(stderr,  Execution time: %.3lf s. n ,                 (double)clock() / CLOCKS_PER_SEC);       long long n;       cin >> n;     }   } __S;   long long a[1111111];   long long ai[1111111];   int main(void) {     long long n;     cin >> n;     for (long long i = 0; i < (long long)(n); i++) {       cin >> a[i];       a[i]--;       ai[a[i]] = i;     }     long long cnt = 0;     for (long long i = 0; i < (long long)(n); i++) {       if (i == a[i]) continue;       long long j = ai[i];       swap(a[i], a[j]);       swap(ai[a[i]], ai[a[j]]);       cnt++;     }     long long m1 = 3 * n - cnt;     long long m2 = 7 * n + 1 - cnt;     if (m1 % 2 == 0)       cout <<  Petr  <<   n ;     else       cout <<  Um_nik  <<   n ;     return 0;   }   