user: ### NOW ANSWER:
Question: what is the maximum 18 to 19 and 30-34  is 1203?
Columns: ['C/W 15+', 'Oblast\\Age', '15 to 17', '18 to 19', '20 to 24', '25 to 29', '30 to 34', '35 to 39', '40 to 44', '45 to 49', '50 to 54', '55 to 59', '60 to 64', '65 to 69', '70+']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1395.0, 'Gorod Moscow', 20.0, 43.0, 330.0, 856.0, 1203.0, 1451.0, 1607.0, 1612.0, 1571.0, 1551.0, 1527.0, 1653.0, 1961.0]
SQL:

assistant: SELECT MAX("18 to 19") FROM "Table" WHERE "30 to 34" = 1203.0;