import sys

sys.setrecursionlimit(10**7)
def I(): return int(sys.stdin.readline().rstrip())
def MI(): return map(int,sys.stdin.readline().rstrip().split())
def LI(): return list(map(int,sys.stdin.readline().rstrip().split()))
def LI2(): return list(map(int,sys.stdin.readline().rstrip()))
def S(): return sys.stdin.readline().rstrip()
def LS(): return list(sys.stdin.readline().rstrip().split())
def LS2(): return list(sys.stdin.readline().rstrip())


W,H,X = MI()

if W >= 2 and H >= 2:
    if X > 36:
        print(-1)
        exit()
    A = []
    for i in range(4):
        for j in range(10):
            if 0 <= X-j <= 9*(3-i):
                X -= j
                A.append(j)
                break
    a0 = '{}{}0'.format(A[0],A[1])
    a1 = '{}{}0'.format(A[2],A[3])
    ans0 = a0*(W//3)
    ans1 = a1*(W//3)
    if W % 3 != 0:
        ans0 += str(A[0])
        ans1 += str(A[2])
    if W % 3 == 2:
        ans0 += str(A[1])
        ans1 += str(A[3])
    ans2 = '0'*W
    for i in range(H):
        if i % 3 == 0:
            print(ans0)
        elif i % 3 == 1:
            print(ans1)
        else:
            print(ans2)
elif H == 1 and W >= 2:
    if X > 18:
        print(-1)
        exit()
    A = []
    for i in range(2):
        for j in range(10):
            if 0 <= X-j <= 9*(1-i):
                X -= j
                A.append(j)
                break
    a0 = '{}{}0'.format(A[0],A[1])
    ans0 = a0*(W//3)
    if W % 3 != 0:
        ans0 += str(A[0])
    if W % 3 == 2:
        ans0 += str(A[1])
    print(ans0)
elif H >= 2 and W == 1:
    if X > 18:
        print(-1)
        exit()
    A = []
    for i in range(2):
        for j in range(10):
            if 0 <= X-j <= 9*(1-i):
                X -= j
                A.append(j)
                break
    for i in range(H):
        if i % 3 == 0:
            print(A[0])
        elif i % 3 == 1:
            print(A[1])
        else:
            print(0)
else:
    if X > 9:
        print(-1)
        exit()
    print(X)