C112313233211113313121111331333133313231323133313331323112112331333132233231   >>    C11231323321111331312111133133313331323132313331333132311211233133313223323   <<    C112313233211113313121111331333133313231323133313331323112112331333132233233   >>      C112313233211113313121111331333133313231323133313331323112112331333132233232   >>