Cheerio Contest 2 P3 - Digits
View as PDFFarmer Bob has two numbers  and 
, which can be represented as a string of 
 
s and a string of 
 
s respectively. He wants to find out the product of 
 and 
 (which he will call 
). Bob soon realizes that 
 will be extremely big, so he will ask 
 questions about 
 instead. For the 
 question, he wants to know the value of the 
 digit in 
 when counting from the left. Can you write a program to help him?
Constraints
For all subtasks:
will not exceed the number of digits in
.
| Points Awarded | Additional Constraints | 
|---|---|
| 2 points | |
| 6 points | |
| 7 points | No further constraints | 
Input Specification
The first line contains three integers , 
 and 
.
The next  lines contain an integer 
.
Output Specification
Output  lines, with the 
 line containing the answer to the 
 question.
Sample Input
3 4 2
1
5
Sample Output
9
0
Explanation for Sample
Since  and 
, 
.
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