simplemath.c

#include <math.h>
#include <stdio.h>

int main()
{
    int n1, n2;
    n1 = 1;
    n2 = 2;
    printf("%d + %d = %d\n", n1, n2, n1 + n2);
    int n3;
    n3 = 4;
    printf("Square root of %d is %f\n", n3, sqrt(n3));
    return 0;
}