import java.io.IOException; import java.io.InputStream; import java.util.Arrays; import java.util.HashMap; import java.util.NoSuchElementException; public class Main{ public static void main(String[] args) { new Main().run(); } final long MOD=(long)1e9+7; long[][] mul(long[][] a,long[][] b) { long[][] ret=new long[a.length][b[0].length]; for (int i=0;i0;n>>=1,a=mul(a,a)) { if (n%2==1) ret=mul(ret,a); } return ret; } void run() { FastScanner sc=new FastScanner(); int M=sc.nextInt(); int K=sc.nextInt(); long[][] mat=new long[M][M]; for (int cur=0;cur