C1111133313331323223313331333133313331323131211113313221211111333133322122321   >>    C111113331333132322331333133313331333132313121111331322121111133313332212232   <<    C1111133313331323223313331333133313331323131211113313221211111333133322122323   >>      C1111133313331323223313331333133313331323131211113313221211111333133322122322   >>