import random
import time

Cap_health = 47
Thanos_health = 95

print("To attack press a To defend press b")
action = input()

print("Thanos attacks")

if action == (a):
    print("You attack")
    print("Thanos deals 20 damage")
    print("You attack and deal 15 damage")
    Cap_health = 20
    Thanos_health = 15

    if action == (b):
        print("You defend")
        print("Thanos attacks with 20 damage")
        print("You defend dealing 18 damage on rebound")
        Thanos_health - 18