C3121113331313231323132333131313231323131323223313233313232332313231323221111
>>
C312111333131323132313233313131323132313132322331323331323233231323132322111
<<
C3121113331313231323132333131313231323131323223313233313232332313231323221113
>>
C3121113331313231323132333131313231323131323223313233313232332313231323221112
>>