from collections import deque
n=int(input())
t=deque()

for i in range(1,n+1):
    t.append(i)
    
ans=[]
for i in range(n):
    tmp=[]
    for ii,vv in enumerate(t):
        tmp.append(vv)
    ans.append(tmp)
    t.append(t.popleft())

for i in ans:
    print(*list(i))