print("welcome to 21s")num1=int(input("you go first "))print(f"curent total is {num1}")print(f"I choose {4-num1}")print("current total is 4")num2=int(input("you again "))print(f"the current total is {4+num2}")print(f"I choose {4-num2}")print("the current total is 8")num3=int(input("you again "))print(f"the current total is {4+num3}")print(f"I choose {4-num3}")print("the current total is 12")num4=int(input("you again "))print(f"the current total is {4+num4}")print(f"I choose {4-num4}")print("the current total is 16")num5=int(input("you again "))print(f"the current total is {4+num5}")print(f"I choose {4-num5}")print("the current total is 20")print("ha ha you lost")