C1111233133313231133133313331333131211111331121211113313231323222333131   >>    C111123313331323113313331333133313121111133112121111331323132322233313   <<    C1111233133313231133133313331333131211111331121211113313231323222333133   >>      C1111233133313231133133313331333131211111331121211113313231323222333132   >>