macro_rules! input_byline {
    ($($r:tt)* ) => {
        let stdin = std::io::stdin();
        let mut q = std::collections::VecDeque::new();
        let mut next = || {
            if q.is_empty() {
                let mut s = String::new();
                stdin.read_line(&mut s).ok();
                for v in s.split_whitespace() {
                    q.push_back(v.to_string());
                }
            }
            q.pop_front().unwrap()
        };
        input_inner!{next, $($r)*}
    };
}

#[allow(unused_macros)]
macro_rules! input {
    (lines = $lines:expr, $($r:tt)* ) => {
        let mut s = String::new();
        let lock = std::io::stdin();
        for i in 0..$lines {
            stdin.read_line(&mut s).ok();
        }
        let mut iter = s.split_whitespace();
        let mut next = || { iter.next().unwrap() };
        input_inner!{next, $($r)*}
    };
    (source = $s:expr, $($r:tt)*) => {
        let mut iter = $s.split_whitespace();
        let mut next = || { iter.next().unwrap() };
        input_inner!{next, $($r)*}
    };
    ($($r:tt)*) => {
        let stdin = std::io::stdin();
        let mut bytes = std::io::Read::bytes(std::io::BufReader::new(stdin.lock()));
        let mut next = move || -> String{
            bytes
                .by_ref()
                .map(|r|r.unwrap() as char)
                .skip_while(|c|c.is_whitespace())
                .take_while(|c|!c.is_whitespace())
                .collect()
        };
        input_inner!{next, $($r)*}
    };
}

#[allow(unused_macros)]
macro_rules! input_inner {
    ($next:expr) => {};
    ($next:expr, ) => {};

    ($next:expr, $var:ident : $t:tt $($r:tt)*) => {
        let $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };

    ($next:expr, mut $var:ident : $t:tt $($r:tt)*) => {
        let mut $var = read_value!($next, $t);
        input_inner!{$next $($r)*}
    };
}

#[allow(unused_macros)]
macro_rules! read_value {
    ($next:expr, ( $($t:tt),* )) => {
        ( $(read_value!($next, $t)),* )
    };

    ($next:expr, [ $t:tt ; $len:expr ]) => {
        (0..$len).map(|_| read_value!($next, $t)).collect::<Vec<_>>()
    };

    ($next:expr, chars) => {
        read_value!($next, String).chars().collect::<Vec<char>>()
    };

    ($next:expr, bytes) => {
        read_value!($next, String).into_bytes()
    };

    ($next:expr, usize1) => {
        read_value!($next, usize) - 1
    };

    ($next:expr, $t:ty) => {
        $next().parse::<$t>().expect("Parse error")
    };
}

#[allow(unused_imports)]
use std::cmp::{max, min};
#[allow(unused_imports)]
use std::collections::{BinaryHeap, HashMap};

#[allow(dead_code)]
type Graph = Vec<Vec<usize>>;

fn main() {
    input_byline! {
        n: usize,
        m: usize,
    }
    let mut key = vec![];
    let mut c = vec![];
    for _ in 0..m {
        input_byline! {
            a: usize,
            b: usize,
        }

        c.push(a);
        let mut k = 0;
        input_byline! {
            v: [usize; b],
        }

        for x in v {
            k |= 1 << (x - 1);
        }
        key.push(k);
    }

    let mut dp = vec![None; 1 << 12];
    dp[0] = Some(0);

    for i in 0..m {
        for j in (0..(1 << n)).rev() {
            if dp[j].is_none() {
                continue;
            }
            let nc = dp[j].unwrap() + c[i];
            let next = j | key[i];
            if let Some(v @ _) = dp[next] {
                dp[next] = Some(min(nc, v));
            } else {
                dp[next] = Some(nc);
            }
        }
    }
    if let Some(v @ _) = dp[(1 << n) - 1] {
        println!("{}", v);
    } else {
        println!("{}", -1);
    }
}


Measured memory_bytes: 4352