import sys
input = sys.stdin.readline

N,M,K=list(map(int,input().split()))

A=[[-1]*N for i in range(N)]

now=1
for i in range(N):
    x=now
    for j in range(N):
        A[i][j]=x
        x+=1
        if x==M+1:
            x=1
    now+=K
    if now>M:
        now%=M

        if now==0:
            now=M


for a in A:
    print(*a)