#include <iostream>
using namespace std;
int Plus(int a,int b)
{
return a + b;
}
void Minus(int a,int b,int c)
{
c = a - b;
cout << c << endl;
}
// 프로그램 주 실행 점.
void main()
{
int a = 5;
int b = 10;
int c = Plus(a,b);
Minus(a,b,c);
cout << c << endl;
}
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