import os
import signal
clear = lambda: os.system('cls')
clear()
dzialaj = True
a = 0
b = 0
wynik = 0
while dzialaj:
print("-----------------------------------------------------")
print("Witam w wypaśnym kalkulatorze z pierwszego widzenia!")
print("-----------------------------------------------------\n")
print("1. Dodawanie")
print("2. Odejmowanie")
print("3. Mnożenie")
print("4. Dzielenie\n")
print("Wybierz działanie (1,2,3,4): ", end='')
dzialanie = input()
if dzialanie != "1" and dzialanie != "2" and dzialanie != "3" and dzialanie != "4":
print("Błędny wybór...")
input()
clear()
else:
print("Podaj a: ", end='')
a = int(input())
print("Podaj b: ", end='')
b = int(input())
if dzialanie == '1':
wynik = a+b
elif dzialanie == '2':
wynik = a-b
elif dzialanie == '3':
wynik = a*b
elif dzialanie == '4':
if b == 0:
print("Nie można dzielić przez 0!")
else:
wynik = a/b
else:
print("Błędny wybór..")
clear()
break
print("Wynik: " + str(wynik))
print("\nCzy wykonać kolejne działanie? (t - tak)")
czyPowtorzyc = input()
if czyPowtorzyc != 't':
dzialaj = False
clear()
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