https://vk.com/doc120515520_681574605?hash=Cy7qqbi...cIRtAXZYVU4l6KP524ISMk7oLUQSS0
https://vk.com/handmadeblogg
: 13503537_dl_4.pdf
20 + 1 + 2 . .
23 . (20 + 1 + 2 . .) , .
, - .
= 20 . .
.
2 . . : 1 . ., 1 .