C1123132332111133131211113313331333132322331323133313113313221323113211   >>    C112313233211113313121111331333133313232233132313331311331322132311321   <<    C1123132332111133131211113313331333132322331323133313113313221323113213   >>      C1123132332111133131211113313331333132322331323133313113313221323113212   >>