func_code_string: #include <bits/stdc++.h>   using namespace std;   inline int Getlen(int x) {     int res = 0;     while (x) {       res++;       x /= 10;     }     return res;   }   int PP[5];   int a[51], len[51], n, p;   int id[51];   int res[51], tot;   inline void dfs(int now, int Gmod, int Gxor) {     if (Gmod == 0 && Gxor == 0 && tot > 0) {       puts( Yes );       cout << tot << endl;       for (int i = 0; i < tot; i++) cout << res[i] <<    ;       exit(0);     }     if (now > n) return;     dfs(now + 1, Gmod, Gxor);     res[tot++] = id[now];     dfs(now + 1, (Gmod * PP[len[now]] + a[now]) % p, Gxor ^ a[now]);     tot--;   }   int main() {     rand();     rand();     rand();     rand();     rand();     rand();     int tmpp;     tmpp = 0;     tmpp++;     tmpp++;     tot = 0;     PP[0] = 1;     for (int i = 1; i <= 3; i++) PP[i] = PP[i - 1] * 10;     scanf( %d%d , &n, &p);     int now = 0, tmp;     for (int i = 1; i <= n; i++) {       scanf( %d , &tmp);       if (tmp <= 31) a[++now] = tmp, len[now] = Getlen(a[now]), id[now] = i;     }     n = now;     dfs(1, 0, 0);     puts( No );   }   