#include<stdio.h>

//***(1)***
//計算1!+2!+3!+4!+5!+6!+7!+8!+9!+10!的值
int func(int n)//一個數的階乘
{
	if(n>0)
		return n*func(n-1);
	if(n<=0)
		return 1;
}

int main()
{
	int sum = 0;
	int i = 1;
	for(i=1;i<=2;i++)
	{
		sum += func(i);
	}
	printf("sum = %d\n",sum);
	return 0;

}


//***(2)***
//計算1!+2!+3!+4!+5!+6!+7!+8!+9!+10!的值
int fun()
{
	int sum = 0;
	int i = 0;
	int count = 1;
	for(i=1;i<=10;i++)
	{
	
		count *= i;
		sum += count;
	}
	return sum;
}

int main()
{
	int ret = fun();
	printf("%d\n",ret);	
	return 0;
}