C1212121231123232233131323223313231333132333132322331323131323132313132211
>>
C121212123112323223313132322331323133313233313232233132313132313231313221
<<
C1212121231123232233131323223313231333132333132322331323131323132313132213
>>
C1212121231123232233131323223313231333132333132322331323131323132313132212
>>