CREATE TABLE table_45555 ("Tournament" TEXT, "1988" TEXT, "1989" TEXT, "1990" TEXT, "1991" TEXT, "1992" TEXT, "1993" TEXT, "1994" TEXT, "1995" TEXT, "1996" TEXT, "1997" TEXT, "1998" TEXT, "1999" TEXT, "2000" TEXT, "2001" TEXT, "2002" TEXT, "2003" TEXT, "2004" TEXT, "Career SR" TEXT, "Career Win-Loss" TEXT)

What is 1990, when 1997 is '1R', and when Tournament is 'Hamburg'?
SELECT "1990" FROM table_45555 WHERE "1997" = '1r' AND "Tournament" = 'hamburg'
SELECT "1990" FROM "table_45555" WHERE "1997" = '1r' AND "Tournament" = 'hamburg'