#include <stdio.h>
int kaijo(int n){
	int i,y;
 
	y=1;
	for(i=n;i>1;i=i-1)
	y=y*i;
 
	return y;
}
 
int comb(int m,int k){
	int c;
 
	c=kaijo(m)/(kaijo(k)*kaijo(m-k));
 
	return c;
}
 
int main(void) {
	int c,m,k;
 
	scanf("%d,%d",&m,&k);
	c=comb(m,k);
	printf("mを入力してください:%d\n",m);
	printf("kを入力してください:%d\n",k);
	printf("%d個の中から%d個を取り出す組合せ数は、%d通りです。",m,k,c);
 
	return 0;
}
 

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MTAsMw==

10,3