d=len(a)-len(b);a+=' '*-d;b+=' '*d;o=range(len(a));r.shuffle(o);print a
for i in o:a=a[:i]+b[i]+a[i+1:];print a
# ^ time.sleep(1); # removed due to time limit here
for a, b in(("Stringy","Blingy"),("Banana","Republic"),("United","States"),("Make America","Tissue box"),("I like walls","I have small hands"),("Hello,","world!")):
Stringy
Strnngy
Strnggy
Btrnggy
Btrngg
Blrngg
Blrngy
Blingy
Banana
Benana
Benaba
Renaba
Repaba
Repaba c
Repabl c
Republ c
Republic
United
United
United
Utited
Utated
Stated
States
Make America
MakeuAmerica
TakeuAmerica
TakeuAmerxca
TakeuA erxca
Takeue erxca
Takeue erx a
Taksue erx a
Taksue erx
Tassue erx
Tassue brx
Tissue brx
Tissue box
I like walls
I like salls
I like salls
I like salls a
I like smlls a
I lake smlls a
I lake smlls a
I lake smlls ha
I lake smlls ha
I lake smlls ha
I lake smlls ha d
I lake smlls ha d
I lake smlls ha d
I lake smlls ha ds
I lake smlls hands
I lave smlls hands
I lave smals hands
I have smals hands
I have small hands
Hello,
Hello,
Helld,
Helld!
Holld!
wolld!
world!