C123213232213233231323132313132313113313132313231333132313331323331323232132311   >>    C12321323221323323132313231313231311331313231323133313231333132333132323213231   <<    C123213232213233231323132313132313113313132313231333132313331323331323232132313   >>      C123213232213233231323132313132313113313132313231333132313331323331323232132312   >>