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

A = [list(map(int, input().split())) for _ in range(N)]

dp = [False] * (K+1)
dp[0] = True

for i in range(N):
    nx = [False] * (K+1)
    for a in A[i]:
        for j in range(K+1):
            if j + a > K:
                break
            nx[j+a] |= dp[j]
    dp = nx

for i in range(K+1)[::-1]:
    if dp[i]:
        print(K-i)
        exit()
print(-1)