What is the earliest year that has fewer than 3852.1 cows and 3900.1 working horses?
CREATE TABLE "ukrainian_ssr_livestock_thousand_head" (
  "year" real,
  "total_horses" real,
  "working_horses" text,
  "total_cattle" real,
  "oxen" real,
  "bulls" text,
  "cows" real,
  "pigs" real,
  "sheep_and_goats" real
);
SELECT MIN("year") FROM "ukrainian_ssr_livestock_thousand_head" WHERE "working_horses"='3900.1' AND "cows"<3852.1;