while True:
    cislo1 = float(input('Zadaj 1. cislo dumbass:\n'))
    operacia = input('Vyber operaciu (+ - * \)\n')
    cislo2 = float(input('Zadaj 2. cislo dumbass:\n'))
    if operacia == '+':
        print('Vysledok = {}'.format(cislo1+cislo2))
    elif operacia == '-':
        print('Vysledok = {}'.format(cislo1-cislo2))
    elif operacia == '*':
        print('Vysledok = {}'.format(cislo1*cislo2))
    elif operacia == '/':
        print('Vysledok = {}'.format(cislo1/cislo2))
    else:
        print('Chujovo zadana operacia')
    print('--------------------------------------------------')