N,M,K = map(int,input().split())
A = [[]]*N
for i in range(N):
    A[i] = [int(a) for a in input().split()] 
dp = [0]*(K+1)
dp[0] = 1

for i in range(N):
    tmp = [0]*(K+1)
    for j in range(M):
        for k in range(K+1):
            if dp[k] == 1 and k + A[i][j] <= K:
                tmp[k+A[i][j]] = 1
    dp = tmp

ans = -1
for k in range(K+1):
    if dp[k] == 1:
        ans = K - k

print(ans)