# for i in [1, 2, 3]:
#     print(i)

# for i in "abcd":
#     print(i)

# for i in range(10): #0~9 10번 반복
#     print(i)

# for i in range(1, 11): #1~10 10번 반복
#     print(i)

# for i in range(1, 11, 2): #1~10 2씩 증가 5번 반복
#     print(i)

a = 1
a += 10
print(a)