C1111233133313231133133313331333133313231312111133133313221213232311231231   >>    C111123313331323113313331333133313331323131211113313331322121323231123123   <<    C1111233133313231133133313331333133313231312111133133313221213232311231233   >>      C1111233133313231133133313331333133313231312111133133313221213232311231232   >>