#include <bits/stdc++.h>
using namespace std;
const int N=1e6+7;
int ans[20][20]={
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, 
{0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1},
{0,0,1,4,11,26,57,120,247,502,1013,2036,4083,8178,16369,32752},
{0,0,0,2,18,96,404,1494,5118,16724,53040,165018,507050,1545384,4684908,14152574},
{0,0,0,0,6,96,840,5496,30426,151800,707772,3153648,13622526,57588528,239782512,987643272},
{0,0,0,0,0,24,600,7800,73080,563520,3833664,23971920,141379920,799912200,391998892,589053863},
{0,0,0,0,0,0,120,4320,78120,991200,10134720,89898480,723071760,425009885,693502814,807873985},
{0,0,0,0,0,0,0,720,35280,846720,13970880,182710080,44959826,521408180,302038030,468138032},
{0,0,0,0,0,0,0,0,5040,322560,9918720,206357760,357668139,234742078,443099725,198293547},
{0,0,0,0,0,0,0,0,0,40320,3265920,125193600,205319019,479686599,975154869,548307441},
{0,0,0,0,0,0,0,0,0,0,362880,36288000,696463993,410758036,993344920,877011654},
{0,0,0,0,0,0,0,0,0,0,0,3628800,439084800,588748632,880172893,607100715},
{0,0,0,0,0,0,0,0,0,0,0,0,39916800,748019165,848266147,870055388},
{0,0,0,0,0,0,0,0,0,0,0,0,0,479001600,951269840,247777169},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,227020758,496068260},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,178290591},
};
int main(){
	freopen("rotk.in","r",stdin);
	freopen("rotk.out","w",stdout);	
	int n,m;
	cin>>n>>m;
	cout<<ans[n][m];


	return 0;
}