C22213323132313331323223313221211111211111333231333131323223321   >>    C2221332313231333132322331322121111121111133323133313132322332   <<    C22213323132313331323223313221211111211111333231333131323223323   >>      C22213323132313331323223313221211111211111333231333131323223322   >>