>>352
<2>

#include <stdio.h>
int main(){
int a;
printf("Which number you want?");
scanf("%d", &a);
printf("The kaijo of %d is : %d", a, kaijo(a));
return 0;
}

int kaijo(int a){
int i, base=1;
while(a>1){
base *= a--;
}
return b
}

あごめんよくわかんね