#include <stdio.h>
int factorial(int n){
int i,result=1;
for(i=n;0<i;i--){
result*=i;}
return result;
}
int comb(int m,int k){
int result;
result=factorial(m)/(factorial(k)*factorial(m-k));
return result;
}
int main(void) {
int m,k;
return 0;
}
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