#include <stdio.h>

int soma (int x, int y) {
  x += 1;
  y -= 1;
  printf ("Soma de x e y: %d\n", x + y);
  return (x + y);
}

main () {
  int a, b;

  printf ("Digite o valor de a: ");
  scanf ("%d", &a);

  printf ("Digite o valor de b: ");
  scanf ("%d", &b);

  printf ("Soma de a e b: %d\n", soma(a, b));
  printf ("a: %d\n", a);
  printf ("b: %d\n", b);
}