C111123313121111121111331323133313331333132322121111133313231323211331   >>    C11112331312111112111133132313331333133313232212111113331323132321133   <<    C111123313121111121111331323133313331333132322121111133313231323211333   >>      C111123313121111121111331323133313331333132322121111133313231323211332   >>