C1111233133313231133133313331333131211111331121111331322331333132312321   >>    C111123313331323113313331333133313121111133112111133132233133313231232   <<    C1111233133313231133133313331333131211111331121111331322331333132312323   >>      C1111233133313231133133313331333131211111331121111331322331333132312322   >>