/******************************************************************************
Online C Compiler.
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*******************************************************************************/
#include <stdio.h>
int main()
{
int n=5;
int temp=1;
//scanf("%d",&n);
for(int i=1; i<=n; i++){
temp=i;
for(int j=1; j<=i; j++){
printf("%d ",temp);
temp =temp+n-j;
}
printf("\n");
}
return 0;
}