C111123313331323113313331323133313331311331323232132313331323133313331311112321   >>    C11112331333132311331333132313331333131133132323213231333132313331333131111232   <<    C111123313331323113313331323133313331311331323232132313331323133313331311112323   >>      C111123313331323113313331323133313331311331323232132313331323133313331311112322   >>