C111123313121111121111331323133313331333132322121111133313231333133313233211331   >>    C11112331312111112111133132313331333133313232212111113331323133313331323321133   <<    C111123313121111121111331323133313331333132322121111133313231333133313233211333   >>      C111123313121111121111331323133313331333132322121111133313231333133313233211332   >>