C3121113331313231323132333131313231323131323223313233313233313233313132321121
>>
C312111333131323132313233313131323132313132322331323331323331323331313232112
<<
C3121113331313231323132333131313231323131323223313233313233313233313132321123
>>
C3121113331313231323132333131313231323131323223313233313233313233313132321122
>>