Given two strings, find the number of common characters between them.ExampleFor s1 = "aabcc" and s2 = "adcaa", the output should be commonCharacterCount(s1, s2) = 3.Strings have 3 common characters - 2 "a"s and 1 "c".Input/Output[execution time limit] 3 seconds (java)[input] string s1A string consisting of lowercase latin letters a-z.Guaranteed constraints: 1 ≤ s1.length ≤ 15.[input] string s2A ..