# Murakkab ifoda
a = True
b = False  
c = True

# Qiyin o'qiladigan ifoda
natija1 = not (a and b) or (c and not b)

# Bosqichma-bosqich yozish (tushunarli)
ab = a and b              # True and False → False
not_ab = not ab           # not False → True
not_b = not b             # not False → True
c_and_not_b = c and not_b # True and True → True
natija2 = not_ab or c_and_not_b  # True or True → True

print(f"Natija 1: {natija1}")  # True
print(f"Natija 2: {natija2}")  # True

a = True
b = False

# Birinchi usul
natija1 = not (a and b)

# Ikkinchi usul (De Morgan)
natija2 = (not a) or (not b)

print(f"Natija 1: {natija1}")  # True
print(f"Natija 2: {natija2}")  # True (bir xil)

a = True
b = False

# Birinchi usul
natija1 = not (a or b)

# Ikkinchi usul (De Morgan)
natija2 = (not a) and (not b)

print(f"Natija 1: {natija1}")  # False
print(f"Natija 2: {natija2}")  # False (bir xil)

Barcha fanlar yetarli: True
Mukammal natija bor: False  
O'rtacha ball yetarli: True
Imtihon topshirdi: False