E
Size: a a a
E
E
БГ
E
БГ
E
БГ
py3
class list(list):
def get(self, index, default=None):
try: return self[index]
except IndexError: return default
print(list(range(20)).get(22, 1))
1
E
R3
E
R3
R3
E
E
A
K
AT
БГ
ВИ
inp
a = [1,2,3,6,3,2,10,11,12]
out
a = [3,6,12]
R3