C3121113331313231323132333131313231323131323223313233313232112323132313231121
>>
C312111333131323132313233313131323132313132322331323331323211232313231323112
<<
C3121113331313231323132333131313231323131323223313233313232112323132313231123
>>
C3121113331313231323132333131313231323131323223313233313232112323132313231122
>>