import logging
import sys
from inspect import currentframe

sys.setrecursionlimit(10 ** 6)
input = sys.stdin.readline

logging.basicConfig(level=logging.DEBUG)


def dbg(*args):
    id2names = {id(v): k for k, v in currentframe().f_back.f_locals.items()}
    logging.debug(
        ", ".join(id2names.get(id(arg), "???") + " = " + repr(arg) for arg in args)
    )


def main():

    n, m, k = map(int, input().split())
    a = [list(map(int, input().split())) for _ in range(n)]
    dp = [[False] * (k + 1) for _ in range(n + 1)]
    dp[0][0] = True
    for i in range(n):
        for j in range(m):
            p = a[i][j]
            for ck in range(k, -1, -1):
                if dp[i][ck] and ck + p <= k:
                    dp[i + 1][ck + p] = True
    for can in range(k, -1, -1):
        if dp[n][can]:
            print(k - can)
            exit()
    else:
        print(-1)


if __name__ == "__main__":
    main()