B331133131323131133132233133313231323331323133313112331333131232322121111
>>
B33113313132313113313223313331323132333132313331311233133313123232212111
<<
B331133131323131133132233133313231323331323133313112331333131232322121113
>>
B331133131323131133132233133313231323331323133313112331333131232322121112
>>