#include <stdio.h>
#define MAX 10

int R[2][MAX];

int r(int n, int m){
int i,j,k;
 for ( i=0; i<=m; i++) R[1][i]=1;	//Pro jedno dite jedna moznost

 for ( i=2; i<=n; i++ ) 
  for( R[i%2][j=0]=0; j<=m; R[i%2][++j]=0 )		//zapomen predchozi
   for ( k=0; k <= j/i; k++ ) R[i%2][j]+=R[(i-1)%2][j-k*i];	//suma

 return R[n%2][m];
}

int main(void){
 int deti, darku;
 scanf("%d",&deti);scanf("%d",&darku);
 printf("%d moznosti.\n",r(deti,darku));
 return 0;
}