To find sum of two numbers without using any operator

#include

// Add your code here to print numbers from 1
// to N without using any semicolon
int addNumber(int n, int m){
    printf("%*d%*d",5,n,8,m);
}

int main()
{
   printf("\n%d", addNumber(5,8));
}


We can avoid the leading spaces by using carriage return

#include

// Add your code here to print numbers from 1

// to N without using any semicolon

int addNumber(int n, int m){

    printf("%*c%*c",5,'\r',8,'\r');

}

int main()

{

   printf("\nSum: %d", addNumber(5,8));

}

Note: It will work on code blocks but not in Online Compilers:ideone