s = 'this is a string'
s1 = 'this is '
s2 = 'a string'
stot = [s1,s2]
stot(1)='T'
stot = [stot,'!']>> string_manipulations
s =
'this is a string'
s1 =
'this is '
s2 =
'a string'
stot =
'this is a string'
stot =
'This is a string'
stot =
'This is a string!'
>>