def transferStack(fr,to,n):
to.extend(fr[len(fr) - n:])
for i in range(n):
fr.pop()
fr = [1,2,3,4,5]
to = [1,2]
transferStack(fr,to,3)
print fr, to
ZGVmIHRyYW5zZmVyU3RhY2soZnIsdG8sbik6CiAgdG8uZXh0ZW5kKGZyW2xlbihmcikgLSBuOl0pCiAgZm9yIGkgaW4gcmFuZ2Uobik6CiAgCWZyLnBvcCgpCgpmciA9IFsxLDIsMyw0LDVdCnRvID0gWzEsMl0KCnRyYW5zZmVyU3RhY2soZnIsdG8sMykKCnByaW50IGZyLCB0bw==