C111123313331323113313331313331333132313331322121111331323222221   >>    C11112331333132311331333131333133313231333132212111133132322222   <<    C111123313331323113313331313331333132313331322121111331323222223   >>      C111123313331323113313331313331333132313331322121111331323222222   >>