C312312111111331312111133133313331333133313231333132322331333132221   >>    C31231211111133131211113313331333133313331323133313232233133313222   <<    C312312111111331312111133133313331333133313231333132322331333132223   >>      C312312111111331312111133133313331333133313231333132322331333132222   >>