Subtraction of two numbers in C++ Program

Subtraction of two numbers in C++ Program

#include<iostream.h>
#include<conio.h>
 void main()
  {
  int a,b;
  clrscr();
  cout<<"\nEnter two numbers:-";
  cin>>a>>b;
  int sub=a-b;
  cout<<"Sutractin="<<sub;
  getch();
  }

Output:- 

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