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

    dp_table = [[0 for _ in range(K+1)] for _ in range(N+1)]
    dp_table[0][0] = 1

    for country_idx, country_omiyage in enumerate(omiyage_list, 1):
        for omiyage_cost in country_omiyage:
            for origin_sum in range(max(0, K+1-omiyage_cost)):
                dp_table[country_idx][origin_sum +
                                      omiyage_cost] += dp_table[country_idx-1][origin_sum]
    
    last_country_sum = dp_table[-1]
    for idx, value in enumerate(reversed(last_country_sum)):
        if value > 0:
            print(idx)
            break
    else:
        print(-1)


if __name__ == "__main__":
    main()