C1111233133313231133133313331333133313231312111133133313233313331323131111   >>    C111123313331323113313331333133313331323131211113313331323331333132313111   <<    C1111233133313231133133313331333133313231312111133133313233313331323131113   >>      C1111233133313231133133313331333133313231312111133133313233313331323131112   >>