题解 | #蛇形矩阵#

while True: try: n = int(input())

    li=[1]
    for i in range(1 , n):
        li.append(li[-1]+i)
    # print(li)
    l = []
    for c, i in enumerate(li,1):
        l.append(i)
        for j in range(c+1 , n+1):
            l.append(l[-1]+j)
        print(' '.join(map(str,l)))
        l=[]

    # lj = [1]
    # for i in range(2, n + 1):
    #     lj.append(lj[-1] + i)
    # print(lj)
except:
    break