C1111233133313231133133313331333133313231331133133313331333133321131121   >>    C111123313331323113313331333133313331323133113313331333133313332113112   <<    C1111233133313231133133313331333133313231331133133313331333133321131123   >>      C1111233133313231133133313331333133313231331133133313331333133321131122   >>