#include <stdio.h>
#include <stdlib.h>
 
 
int main(){
    int i,j,k;
    int a,b;
    int **mat;
    int n=1;
    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(j=0;j<a;j++){
		for(k=0;k<b;k++){
			mat[j][k]=n;
			n++;
		}
	}
 
    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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MyA5

3 9