fn main() {
    let mut nmk = String::new();
    std::io::stdin().read_line(&mut nmk).ok();
    let nmk: Vec<usize> = nmk.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let n = nmk[0];
    let m = nmk[1];
    let k = nmk[2];
    let mut progress: Vec<Vec<(usize, usize)>> = vec![vec![]; 300];
    for _ in 0..m {
        let mut pqc = String::new();
        std::io::stdin().read_line(&mut pqc).ok();
        let pqc: Vec<usize> = pqc.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
        progress[pqc[0] - 1].push((pqc[1] - 1, pqc[2]));
    }

    const DIVISOR: usize = 10e9 as usize + 7usize;
    let mut dp: Vec<Vec<Vec<usize>>> = vec![vec![vec![0; 300]; k+1]; n];
    for i in 0..300 {
        dp[0][0][i] = 1;
    }
    for i in 1..n {
        for c in 0..=k {
            for m in 0..300 {
                if dp[i-1][c][m] == 0 { continue; }
                progress[m].iter()
                    .filter(|&pair| pair.1 + c <= k)
                    .for_each(|&pair| {
                        dp[i][c + pair.1][pair.0] += dp[i-1][c][m];
                        dp[i][c + pair.1][pair.0] %= DIVISOR;
                    });
            }
        }
    }
    println!("{}", dp[n-1][k].iter().sum::<usize>());
}