#include <stdio.h> int main() { int n; scanf("%d",&n); int i ,j =0; int k = 1; int top[n]; int s = 0; top[0] = 1; for(i=1;i<n;i++) { top[i] = top[i-1]+k; k=k+1; } for(i=0;i<n;i++) { k = i+2; s = top[i]; for(j=0;j<n-i;j++) { printf("%d ",s); s = s+k; k = k+1; } printf("\n"); } }