C3121113331313231323132333131313231323131323223313233313232332313231323221121
>>
C312111333131323132313233313131323132313132322331323331323233231323132322112
<<
C3121113331313231323132333131313231323131323223313233313232332313231323221123
>>
C3121113331313231323132333131313231323131323223313233313232332313231323221122
>>