func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1e4 + 10;   const int MOD = 1e9 + 7;   const int INF = 0x3f3f3f3f;   long long gcd(long long a, long long b) { return b == 0 ? a : gcd(b, a % b); }   long long ans[maxn << 2];   int main() {     long long n, k, m;     scanf( %lld%lld , &n, &k);     m = (n * 6 - 1) * k;     printf( %lld n , m);     for (int i = 1; i <= n; i++) {       long long tmp = 6 * (i - 1);       printf( %lld %lld %lld %lld n , (tmp + 1LL) * k, (tmp + 2LL) * k,              (tmp + 3LL) * k, (tmp + 5LL) * k);     }     return 0;   }   