print( "-----------------------------" )
print( "Troll attack:" )

import random

health = 100

print()
print( "You are attacked by a troll!" )
print( "Your health:", health )

while health > 0 :
    print()
    print( "The troll swings his axe" )

    damage = random.randint( 5, 20 )
    health = health - damage

    defence = input("what do you do?")
    print("you did some damage using", defence)

    print( "You take", damage, "damage" )
    print( "Your health:", health )

print()
print( "You are DEAD!" )