aop opa coco 3 ee 2 po. a opa oopo pa aepe oeco ee paoe 3 + 1 cp + 2 poo. 1 p: *1 aoa, 2 e, * 1 aoa 2 p: * 1 a, 2 c p paoo, * 1 a a pooae a, oop c 1 o 2 p paopa.