C312312111111331312111133133313331333133322331323133313331323132313331333133321   >>    C31231211111133131211113313331333133313332233132313331333132313231333133313332   <<    C312312111111331312111133133313331333133322331323133313331323132313331333133323   >>      C312312111111331312111133133313331333133322331323133313331323132313331333133322   >>