List Comprehension

# l = []

# for i in range(1,11):

#     l.append(i**3)

# print(l)

# x = [i**3 for i in range(1,11)]

# print(x)

# n = ["Mango", "Apple", "Guava"]

# n1 = []

# for i in n:

#     n1.append(i[0])

# print(n1)

# n2 = [i[0] for i in n]

# print(n2)

# l = list(range(1,11))

# even = []

# for i in l:

#     if i%2 == 0:

#         even.append(i)

# print(even)

# even1 = [i for i in l if i%2 == 0]

# print(even1)

# l = list(range(1,11))

# x = []

# for i in l:

#     if i % 2 == 0:

#         x.append(i)

#     else:

#         x.append("O")

# print(x)

# x1 = [i if (i % 2 == 0) else "O" for i in l]

# print(x1)

a = [[1,2,3],[4,5,6],[7,8,9]]

b = []

for j in a:

    for i in j:

        b.append(i)

print(b)

b1 = [i for j in a for i in j]

print(b1)