mod = 998244353


def main():
    import sys
    input = sys.stdin.readline

    N = int(input())
    ans = [[0] * N for _ in range(N)]
    for i in range(N):
        for j in range(N):
            ans[i][j] = (i - j) % N + 1
    for h in range(N):
        print(*ans[h])


if __name__ == '__main__':
    main()