Joony teases the trio's while watching their performance on the rooftop.  Suggesting they should try to be more like the famed street dancer, Chinu 
It’s one plus one.
‫إنه واحد زائد واحد.
Es gibt One Plus One.
-Es gratis.
-¿Qué? Ah, bien…
-Te sale gratis.
-¿Qué? Ah, vale…
– C’est une achetée, une offerte.
– Euh… OK…
C'è il prendi 2 paghi 1.
É pague, um leve dois!
Два по цене одного.