s = "Python programming language"
part = s[7:]
print(part) # programming language
part = s[:6]
print(part) # Python
part = s[:-4]
print(part) # Python programming lang
part = s[-4:]
print(part) # uage
part = s[2:3]
print(part) # t
part = s[2:-4]
print(part) # thon programming lang
'''
run:
programming language
Python
Python programming lang
uage
t
thon programming lang
'''