C123213232213331322132313233313222313231323132322123231323221231   >>    C12321323221333132213231323331322231323132313232212323132322123   <<    C123213232213331322132313233313222313231323132322123231323221233   >>      C123213232213331322132313233313222313231323132322123231323221232   >>