#include <iostream>
#include <string>

std::string rle(std::string str) {
}

//std::string rle(//std::string str) {
}
// ABBBCCXYZDDDDEEEFFFAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBB
// AB3C2XYZD4E3F3A6B28

int main() {
  std::string input_string = "AAAABBBCCXYZDDDDEEEFFFAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBB";
  std::cout << "Result: " << rle(input_string) << std::endl;
}