C111123313121111121111331333133313231323132322331333132313233232321   >>    C11112331312111112111133133313331323132313232233133313231323323232   <<    C111123313121111121111331333133313231323132322331333132313233232323   >>      C111123313121111121111331333133313231323132322331333132313233232322   >>