use proconio::{input, marker::Usize1};

fn main() {
    input! {
        n: usize, m: usize, k: usize,
        a: [Usize1; k],
        t: [[usize; n]; n],
    }

    let mut is_goal = vec![false; n];
    for &a in &a {
        is_goal[a] = true;
    }

    let inf = 1usize << 60;
    let mut dp = vec![vec![inf; n]; 1 << n];
    for i in 0..n {
        dp[1 << i][i] = 0;
    }

    let mut ans = inf;
    for bits in 0usize..1 << n {
        for i in 0..n {
            if bits >> i & 1 == 0 {
                continue;
            }

            if bits.count_ones() as usize >= m && is_goal[i] {
                ans = ans.min(dp[bits][i]);
            }

            for j in 0..n {
                if bits >> j & 1 == 1 {
                    continue;
                }

                let nbits = bits | 1 << j;
                dp[nbits][j] = dp[nbits][j].min(dp[bits][i] + t[i][j]);
            }
        }
    }

    println!("{}", ans);
}