C111123313331323113313331333133313231323133312111112111113132332313221   >>    C11112331333132311331333133313331323132313331211111211111313233231322   <<    C111123313331323113313331333133313231323133312111112111113132332313223   >>      C111123313331323113313331333133313231323133312111112111113132332313222   >>