#include<stdio.h>
#include<stdlib.h>

extern "C"{
  int IncreaseBy1(int a);
}


void setup() {
  Serial1.begin(9600);
}

int main()
{
  int a, x;
  printf("Enter a number: ");
  scanf("%d", &a);
  printf("%d", a);
  x = IncreaseBy1(a);
  printf("\nThe increamented number is : %d", x);
  return 0;
}