C1111233133313231133133313331333133313231312111133133313222312311   >>    C111123313331323113313331333133313331323131211113313331322231231   <<    C1111233133313231133133313331333133313231312111133133313222312313   >>      C1111233133313231133133313331333133313231312111133133313222312312   >>