func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   int a[31] = {4,   22,  27,  58,  85,  94,  121, 166, 202, 265,                274, 319, 346, 355, 378, 382, 391, 438, 454, 483,                517, 526, 535, 562, 576, 588, 627, 634, 636, 645};   int main() {     scanf( %d , &n);     printf( %d , a[n - 1]);     return 0;   }   