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

Input: Consider Input: Sam was collecting cans for recycling . On Saturday he filled 4 bags up and on Sunday he filled 3 more bags . If each bag had 6 cans in it , how many cans did he pick up total ?

Output: 42


Input: Consider Input: There are 64 students trying out for the school 's trivia teams . If 36 of them did n't get picked for the team and the rest were put into 4 groups , how many students would be in each group ?

Output: 7


Input: Consider Input: Kylie was collecting coins . She got 15 coins from her piggy bank and 13 coins from her brother . Her father gave Kylie 8 coins . Kylie gave 21 of the coins to her friend Laura . How many coins did Kylie have left ?


Output: 15