B1323331313331312323133313112113313232233132333133313231333132313132212121
>>
B132333131333131232313331311211331323223313233313331323133313231313221212
<<
B1323331313331312323133313112113313232233132333133313231333132313132212123
>>
B1323331313331312323133313112113313232233132333133313231333132313132212122
>>