C231311112223313112113313231111331322331323133313233313232323321   >>    C23131111222331311211331323111133132233132313331323331323232332   <<    C231311112223313112113313231111331322331323133313233313232323323   >>      C231311112223313112113313231111331322331323133313233313232323322   >>