"""
i = 0
suma = 0
ile = 0
while i <= 100:
  if i%2 ==0:
    suma = suma + 1
    ile = ile + 1
  i = i + 1
  if i == 77:
    print("ok")
print(suma, ile)
if suma%2 == 0:
  print("suma jest parczysta")
else:
  print("nie jest")
  

for i in range(10):
  print(i)


for i in range(START, STOP, KROK)
  print(i)  

for i in range(10, 50, 5):
  print(i)
  

for i in range(0, 21):
  if  i%2 == 0:
    print(i)
    
for i in range(0, 100):
  if i%2 == 0 and i%10 != 4 and i%10 !=8:
    print(i)
    """
for i in range(0, 32):
  print(i*i)