# list_shift_by_value.py

# list_shift_by_value.py

d = range(0,20)
def shift(seq, n=1):
    n = n % len(seq)
    return seq[n:] + seq[:n]
#
for i in '!'*5:
    d=shift(d)
    print d
d=shift(d,3)
print d
d=shift(d,30)
print d