func_code_string: #include <bits/stdc++.h>   int n, m;   int a[202], b[202];   int main() {     scanf( %d %d , &n, &m);     for (int i = 0; i < n; ++i) {       scanf( %d , &a[i]);     }     for (int i = 0; i < m; ++i) {       scanf( %d , &b[i]);     }     for (int w = 0; w <= 1 << 9; ++w) {       int o = 0;       for (int i = 0; i < n; ++i) {         int mx = -1;         for (int j = 0; j < m; ++j) {           if ((w & (a[i] & b[j])) == (a[i] & b[j])) {             mx = std::max(a[i] & b[j], mx);           }         }         if (mx == -1) {           o = -1;           break;         }         o |= mx;       }       if (o == w) {         printf( %d n , w);         return 0;       }     }     return 0;   }   