need one strength to face one people problem.
need two strength to face two people problem.
need three strength to face three people problem.
need five strength to face five people problem.
need seven strength to face seven people problem.
need twelve strength to face twelve people problem.
need ten strength to face ten people problem.
need hundred strength to face hundred people problem.
need thousand strength to face thousand people problem.
need million strength to face million people problem.
need billion strength to face billion people problem.
need trillion strength to face trillion people problem.
need more strength to face more people problem.