Addition of two numbers through users .

 #include<stdio.h>

#include<conio.h.

int main()

{

int number1, number2, sum;

printf("Enter two interger: ");

scanf("%d %d",&number1, &number2);

sum=number1+number2;

printf("sum=%d",sum);

getch();

return 0;

}

To run:

Output: