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

DP = [[False for _ in range(k + 1)] for _ in range(n + 1)]
DP[0][0] = True
for i in range(n):
    for j in range(m):
        for l in range(k - A[i][j] + 1):
            if DP[i][l]:
                DP[i + 1][l + A[i][j]] |= DP[i][l]

ans = -1
for i in range(k + 1):
    if DP[n][i]:
        ans = k - i
print(ans)