?? ?????????????3???

????:????????:?????v

???????6????????????21?(?? ?)??????,6????20???????????16?????????????????50????,??????????????,?????,?????????,??????????????????,??3?????????????,???

?????????,??????????????????????????????????????????,??,?????20??17?????????40??,3???

??,3???????????????6?????19????????,?,??????????????????????3?????,???????,?????,??????????????????????????????????????,???????????????,??????????????????????(??) ?????????:??????