"""
#print([int(x) for x in range(1000) if (x%5!=0 and x%2!=0)]) # 1/1
print([ 2**j for j in range(1,7) ]) # 1/2
#print([[[(x,y,z) for x in range(1,4)] for y in range(1,4)] for z in range(1,4)]) # 1/3
"""
str = input("Adjon meg egy szöveget: ")   #1/4
print(''.join(x for x in str if x.islower()))
"""
"""
# 1/5
a = {32, 4, 6,64, 54, 25, 1, 83, 92}
b = {2, 4, 5, 32, 1, 54, 0, 34, 93, 23}
print(a)
print(b)
print((a|b)-(a&b))
"""