#include<bits/stdc++.h>
#define Gc() getchar() 
#define Me(x,y) memset(x,y,sizeof(x))
#define Mc(x,y) memcpy(x,y,sizeof(x))
#define d(x,y) ((m)*(x-1)+(y))
#define R(n) (rnd()%(n)+1)
#define Pc(x) putchar(x)
#define LB lower_bound
#define UB upper_bound
#define fi first
#define se second
using namespace std;using ll=long long;using db=double;using lb=long db;using ui=unsigned;using ull=unsigned long long;using pii=pair<int,int>;using LL=__int128;
const int N=15+5,M=(1<<15)+5,K=14348907+5,mod=998244353,Mod=mod-1;const db eps=1e-9;const int INF=1e9+7;mt19937 rnd(time(0));
int n,d;
void Solve(){
	int i,j;
	scanf("%d%d",&n,&d);
	for(int i=1;i<=n;i++){
		for(int j=1;j<=6;j++) printf("%d ",j*d);
		printf("\n");
	}
}
int main(){
	int t;
	// scanf("%d",&t);
	t=1;                                                                                       
	while(t--) Solve();
	cerr<<clock()*1.0/CLOCKS_PER_SEC<<'\n';
}