C123213232213233231323132313132313113313132313231333132313331313232233221   >>    C12321323221323323132313231313231311331313231323133313231333131323223322   <<    C123213232213233231323132313132313113313132313231333132313331313232233223   >>      C123213232213233231323132313132313113313132313231333132313331313232233222   >>