C313331311233133313112331333132313331323132322331333133313231321122121121   >>    C31333131123313331311233133313231333132313232233133313331323132112212112   <<    C313331311233133313112331333132313331323132322331333133313231321122121123   >>      C313331311233133313112331333132313331323132322331333133313231321122121122   >>