C1111233133313231133133313331333133313231312111133133313233323223311   >>    C111123313331323113313331333133313331323131211113313331323332322331   <<    C1111233133313231133133313331333133313231312111133133313233323223313   >>      C1111233133313231133133313331333133313231312111133133313233323223312   >>