CREATE TABLE table_203_242 (id NUMBER, "season" CLOB, "competition" CLOB, "round" CLOB, "club" CLOB, "1st leg" CLOB, "2nd leg" CLOB)

how long has fc shakhtyor salihorsk been playing in europe ?
SELECT MAX("season") - MIN("season") + 1 FROM table_203_242
SELECT MAX("season") - MIN("season") + 1 FROM "table_203_242"