Intro. You and Luca are childhood friends, since the age of 4, when you turned 16 and Luca 15 you separated because of your work in another distant city, you thought you would come back soon, but it was wrong, after 2 years you completed 18 and Luca 17, you were sitting in the square, when you suddenly see Luca's mother (what a coincidence) you get up and go to her, with the nice look Laura, how long, how is Luca and the lady? I miss you, "you say. -Hi my son, I miss, we are very well, Luca will move here 4 days, you will finally see! -Laura says. After a few minutes talking about you, Laura says goodbye and leaves, you are happy to have found Laura and know that Lucas will arrive in 4 days, you also talked about making a surprise to Lucas when he arrived, so you agreed that the 18th (arrival of Luca) you will go to Laura's house and make a surprise to Luca.