C111123313331323113313331333133313231323133312111133131121132211331   >>    C11112331333132311331333133313331323132313331211113313112113221133   <<    C111123313331323113313331333133313231323133312111133131121132211333   >>      C111123313331323113313331333133313231323133312111133131121132211332   >>