#include <stdio.h>
int main(void)
{
int i = 5;
int factorial = 1;
while (i >= 1) // i¸¦ °¨¼Ò½ÃÅ°¸é¼ i°¡ 1ÀÌ»óÀÌ¸é ¹Ýº¹ÇÑ´Ù.
{
factorial *= i;
i--;
}
printf("%d \n", factorial);
return 0;
}