C11112331312111112111133133313331333133313132211312111133132332113313221321   >>    C1111233131211111211113313331333133313331313221131211113313233211331322132   <<    C11112331312111112111133133313331333133313132211312111133132332113313221323   >>      C11112331312111112111133133313331333133313132211312111133132332113313221322   >>