num=[1,2,3]
num.append([4,5,6])
print(len(num))

a=[1,2,3]
print(sum(range(len(a))))

name1=['Amir','Momin','Ali','Ziyo']
name2=[name.upper() for name in name1]
print(name2[3][2])

a=4*0.1==0.4
b=3*0.1==0.3
print(a+b==a-b)

a="thanks all"
print("%s"%a[3:5])

print(9+-+6)

a='assalom'
print(a.rfind('a'))

x=[[0*2]]*2
x[0][0]=1
print(x[0][0]+x[1][0])

a=[5,10,15,20,25]
del a[::2]
print(*a)

a=[1,2,3]
b=a; a.append(4)
print(sum(b)+len(b))

print('{1}{0}'.format(1,0))

print(round(123,-2))

list={'no':-1,0:3,4:5,'yes':10,'zero':'0'}
print(0 in list.values())

a=[1,2,3,4,5]
a[1:5]=[1]
print(a)

20:20 da 3 ta kichik masala tashlanadi.
Qatnashib o'z bilimingizni sinab ko'rishingiz mumkin !!!

a=[4,3,2][1]

print(a+1)

n= "ASU"
m= iter(n[::-1])
print(next(m)+next(m)+next(m))

print('\\'.count('\\'))

print(r'\\'.count('\\'))