#include <stdio.h>
#include <stdlib.h>
 
 
int main(){
    int i,j,k,q=0;
    int a,b;
    int **mat;
    scanf("%d %d",&a,&b);
        mat=(int **)malloc(sizeof(int*)*a);
    for(i=0;i<a;i++){
        mat[i]=(int **)malloc(sizeof(int*)*b);
    }		
 
    for(int t=0;t<a;t++){
        for(int r=0;r<b;r++,q++){
           mat[t][r]=q;
        }
    }
 
 
    //以下の部分は表示の部分です
    //いじらなくてOK
    for(i=0;i<a;i++){
        for(j=0;j<b;j++){
            printf("%d ",mat[i][j]);
        }
        printf("\n");
    }
 
	free(mat);
 
 
    return 0;
}
 

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