C1111233133313231133133313331333133313231312111133131133133312223231   >>    C111123313331323113313331333133313331323131211113313113313331222323   <<    C1111233133313231133133313331333133313231312111133131133133312223233   >>      C1111233133313231133133313331333133313231312111133131133133312223232   >>