Ruudukko

n = int(input())
rivit = [[] for _ in range(n)]
for a in range(n):
    for b in range(n):
        test = list(list(rivit[a][0:b])+list([rivit[i][b] for i in[i for i in range(a)]]))
        if(len(test)!=0):
            dif = [i for i in range(1,max(test)+1) if i not in test]
            if(len(dif)==0):
                if(min(test)>1):
                    rivit[a].append(1)
                else:
                    rivit[a].append(max(test)+1)
            else:
                rivit[a].append(min(dif))
        else:
            rivit[a].append(1)
for a in rivit:
    print(' '.join([str(i) for i in a]))

    

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED