C111123313331323113313331333133313331323123231333132313331312112321   >>    C11112331333132311331333133313331333132312323133313231333131211232   <<    C111123313331323113313331333133313331323123231333132313331312112323   >>      C111123313331323113313331333133313331323123231333132313331312112322   >>