C111113331333132322331333133313331333132313121111331122112313233313331313233231   >>    C11111333133313232233133313331333133313231312111133112211231323331333131323323   <<    C111113331333132322331333133313331333132313121111331122112313233313331313233233   >>      C111113331333132322331333133313331333132313121111331122112313233313331313233232   >>