C231311112223313112113313231111331322331323133313233313231333133313332322321   >>    C23131111222331311211331323111133132233132313331323331323133313331333232232   <<    C231311112223313112113313231111331322331323133313233313231333133313332322323   >>      C231311112223313112113313231111331322331323133313233313231333133313332322322   >>