#!/usr/bin/env python3

from sys import setrecursionlimit, stdin
from typing import Dict, Iterable, Set

INF: int = 2**62
MOD: int = 10**9 + 7

setrecursionlimit(10**6)


def inputs(type_=int):
    ins = input().split(' ')
    ins = [x for x in ins if x != '']

    if isinstance(type_, Iterable):
        return [t(x) for t, x in zip(type_, ins)]
    else:
        return list(map(type_, ins))


def input_(type_=int):
    a, = inputs(type_)
    return a


inputi = input_


def inputstr():
    return input_(str)


# b/aの切り上げ
def ceil(b, a):
    return (a + b - 1) // a


def answer(res) -> None:
    print(res)
    exit()


def compute():
    return


def main():
    n, m, k = inputs()
    xs = [None for _ in range(n)]
    for i in range(n):
        xs[i] = inputs()

    xs = [[0] * m] + xs
    n += 1

    dp = [[False] * (k + 1) for _ in range(n)]
    dp[0][0] = True
    for i in range(1, n):
        for j in range(k + 1):
            for s in range(m):
                if dp[i-1][j] and j + xs[i][s] <= k:
                    dp[i][j + xs[i][s]] = True

    # from pprint import pprint
    # pprint(dp)
    for j in reversed(range(k + 1)):
        if dp[-1][j]:
            print(k - j)
            exit()

    print(-1)


if __name__ == '__main__':
    main()