#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main() {
int n,m;
scanf("%d %d", &n, &m);
int **arr = (int**)malloc(n * sizeof(int*));
for(int i=0; i<n; i++){
arr[i] = (int*)malloc(m * sizeof(int));
}
int a = 1;
//1 2 4 7
//3 5 8 10
//6 9 11 12
for(int k=0; k<n + m -1; k++){
for(int i=0; i<n; i++){
int j = k-i;
if(j>=0 && j<m){
arr[i][j] = a;
a++;
}
}
}
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
printf("%d ", arr[i][j]);
}
printf("\n");
}
return 0;
}
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