You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Ex Input:
Roden went to a pet shop . He bought 15 gold fish and 7 blue fish . How many fish did he buy ?

Ex Output:
22


Ex Input:
Dan grew 42 turnips and 38 cantelopes . Jessica grew 47 turnips . How many turnips did they grow in total ?

Ex Output:
89


Ex Input:
Maria had 14 bottles of water in her fridge . If she drank 8 of them and then bought 45 more , how many bottles would she have ?

Ex Output:

51