C111123313331323113313331323133313331311331323232132313331323133313331311321321   >>    C11112331333132311331333132313331333131133132323213231333132313331333131132132   <<    C111123313331323113313331323133313331311331323232132313331323133313331311321323   >>      C111123313331323113313331323133313331311331323232132313331323133313331311321322   >>