#include <cstring>
#include <iostream>
using namespace std;
 
const short maxSize = 46;
 
int main() {
	int n, matchingLetters;
	cin >> n;
	cin.ignore();
	char *word_1 = new char[maxSize]; 
	char *word_2 = new char[maxSize];
	for (int i = 0; i < n; i++) {
		 matchingLetters = 0;
		 cin.getline(word_1, maxSize);
		 cin.getline(word_2, maxSize);
		 for (int j = 0; j < strlen(word_1); j++) {
		 	  for (int k = 0; k < strlen(word_2); k++)  {
		 	  	   if (word_1[j] == word_2[k]) {
		 	  	   	   word_2[k] = '#';
		 	  	       matchingLetters++;
		 	  	       break;
		 	  	   }
		 	  }
		 }
		 cout << "Case #" << i + 1 << ":  " << strlen(word_1) + strlen(word_2) - 2 * matchingLetters << endl;
	}
	return 0;
}

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

NQpsb2wKbG9saXBvcApwcmltYXRlCm1hdGhlbWF0aWNzCmthbmdhcm9vCmtpbGltYW5qYXJvCnNpc3RlcgpzaXN0ZXJzCmFuZHJvaWQKYW5kcm9tZWRhCg==

5
lol
lolipop
primate
mathematics
kangaroo
kilimanjaro
sister
sisters
android
andromeda