C2313111122233131121133132311113313223313231333132333132313331333132231221   >>    C231311112223313112113313231111331322331323133313233313231333133313223122   <<    C2313111122233131121133132311113313223313231333132333132313331333132231223   >>      C2313111122233131121133132311113313223313231333132333132313331333132231222   >>