while True:
try:
max=int(input())+1
shuzhu1=[([1]*max)for i in range(max)]
c=max+1
for i in range(1,max):
shuzhu1[i][1]=shuzhu1[i-1][1]+(i-1)
ca=i+1
c=c-1
for j in range(2,c):
shuzhu1[i][j]=shuzhu1[i][j-1]+ca
ca+=1
c=max+1
for i in range(1,max):
c=c-1
for j in range(1,c):
print(shuzhu1[i][j],end=" ")
print("")
except:
break