C111123313331323113313331333132313231333131323121111331123123231   >>    C11112331333132311331333133313231323133313132312111133112312323   <<    C111123313331323113313331333132313231333131323121111331123123233   >>      C111123313331323113313331333132313231333131323121111331123123232   >>