#include<iostream>
using namespace std;
int main()
{
double num1, num2, num3, num4, temp;
double sum, ave, pro, min, max;
cout << "请输入4个数字\n" << "它们分别是：";
cin >> num1 >> num2 >> num3 >> num4;
//求和
sum = num1 + num2 + num3 + num4;
//求平均数
ave = sum / 4;
//求积
pro = num1 * num2 * num3 * num4;
//求最大值
if (num1 > num2)
{
temp = num1;
}
else
{
temp = num2;
}

if (temp > num3)
{
max = temp;
}
else
{
max = num3;
}
if (num4 > num3)
{
max = num4;
}
//求最小值

if (num1 < num2)
{
temp = num1;
}
else
{
temp = num2;
}
if (temp < num3)
{
min = temp;
}
else
{
min = num3;
}
if (num4 < num3)
{
min = num4;
}
cout << num1 << " " << num2 << " " << num3 <<" " << num4 << endl;
cout << sum << endl << ave << endl << pro << endl << max << endl << min << endl;
return 0;
}