#[allow(unused_macros)]
macro_rules! input {
    (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)*}
    };
}
 
#[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")
    };
}









use std::cmp::min;
use std::collections::BTreeMap;
use std::process;
fn main() {

    input! {
        H: usize,
        W: usize,
        K: usize
    }
    let modu = 1000000007;
    if W == 1{
        println!("1");
        process::exit(0);
    }
    let mut dp = vec![vec![0; W+1]; H+1 ];
    dp[0][0] = 1;

    //let valid_horizontal: Vec<_> = (0..(1<<(W-1))).filter(|a| {(0..W).all(|i|{ 3 != ((a>>i)&3)})}).collect();
    for j  in 1..((H+1) as i64){
        for k  in 0..(W as i64){
            let mut L:u64 = 0;
            let mut C:u64 = 0;
            let mut R:u64 = 0;
            for b in 0..1<<(W-1){
                let mut flag = 0;
                for bb in 0..(W-2){
                    //println!("{:#02b}", b);
                    if ((b>>bb)&3 == 3){
                        flag = 1;
                        break;    
                    }
                }
                if flag == 1{continue;}
                if k-1 >= 0 && (W-2) as i64 >= k{
                    if (b>>(k-1))&1 == 1{
                        L += 1;
                    }
                    else if (b>>k)&1 == 1{
                        R += 1;
                    }
                    else{
                        C += 1;
                    }
                }
                else if k-1<0{
                    if (b>>k)&1 == 1{
                        R+= 1;
                    }
                    else{
                        C+= 1;
                    }
                }
                else{
                    if (b>>(k-1))&1 == 1{
                        L += 1;
                    }
                    else{
                        C += 1;
                    }
                }
            }
            let jj= j as usize;
            let kk = k as usize;
            dp[jj][kk] = (dp[jj][kk] + (dp[jj-1][kk]*C))% modu;
            if k-1>= 0{
                dp[jj][kk] = (dp[jj][kk] + (dp[jj-1][kk-1] * L))%modu;
            }
            if ((W-2) as i64)>= k{
                dp[jj][kk] = (dp[jj][kk] + (dp[jj-1][kk+1] * R))%modu;
            }

        }
    }
    println!("{}",dp[H][K-1]);   
}



Measured memory_bytes: 4352