S1: Hungary, with a population of about 10 million, lies between Czechoslovakia to the north and Yugoslavia to the south.
P : Here a great deal of grain is grown.
Q : In recent years, however, progress has been made also in the field of industrialisation.
R : Most of this country consists of an extremely fertile plain, through which the river Danube flows.
S : In addition to grain, the plain produces potatoes, sugar, wine and livestock.
S6: The new industries derive mainly from agricultural production.
The Proper sequence should be: