set Comprehension

my_set={char for char in "hello"}
my_set2={num for num in range(1,100)}
my_set3={num**2 for num in range(1,100)}
my_set4={num**2 for num in range(1,100) if num%2==0}


print(my_set)
print(my_set2)
print(my_set3)
print(my_set4)