C3121113331313231323132333131313231323131323223313233313233313232213111111
>>
C312111333131323132313233313131323132313132322331323331323331323221311111
<<
C3121113331313231323132333131313231323131323223313233313233313232213111113
>>
C3121113331313231323132333131313231323131323223313233313233313232213111112
>>