import sys
sys.setrecursionlimit(10**7)
input = sys.stdin.readline


def main():
    N, M, K = map(int, input().split())
    A = [list(map(int, input().split())) for _ in range(N)]

    dp = [0]*(K+1)
    dp[0] = 1
    for i in range(N):
        tmp = [0]*(K+1)
        for j in range(M):
            k = 0
            while k+A[i][j]<=K:
                if dp[k]:
                    tmp[k+A[i][j]] = 1
                k += 1
        dp = tmp
        # print(dp)
    
    for i in reversed(range(K+1)):
        if dp[i]:
            print(K-i)
            return
    
    print(-1)


if __name__ == '__main__':
    main()