Common Divisors
题目描述
Vasya has recently learned at school what a number's divisor is and decided to determine a string's divisor. Here is what he came up with.
String a is the divisor of string b if and only if there exists a positive integer x such that if we write out string a consecutively x times, we get string b. For example, string "abab" has two divisors − "ab" and "abab".
Now Vasya wants to write a program that calculates the number of common divisors of two strings. Please help him.
The first input line contains a non-empty string s1.
The second input line contains a non-empty string s2.
Lengths of strings s1 and s2 are positive and do not exceed 105. The strings only consist of lowercase Latin letters.
Print the number of common divisors of strings s1 and s2.
abcdabcd
abcdabcdabcdabcd
2
aaa
aa
1
In first sample the common divisors are strings "abcd" and "abcdabcd".
In the second sample the common divisor is a single string "a". String "aa" isn't included in the answer as it isn't a divisor of string "aaa".
题目来源：fps-www.educg.net-codeforce-1-2833.xml.zip；FPS 共享题包，题包内第 2508 题。保留原作者与原赛事署名。