C111113331333132322331333133313331333132313121111331313331313233311231231   >>    C11111333133313232233133313331333133313231312111133131333131323331123123   <<    C111113331333132322331333133313331333132313121111331313331313233311231233   >>      C111113331333132322331333133313331333132313121111331313331313233311231232   >>