string decompressed;
int length = compressed.length();
int count = 0;

for (int i = 0; i < length; ++i) {
    if (std::isdigit(compressed[i])) {
        count = count * 10 + (compressed[i] - '0');
    } else {
        if (count == 0) count = 1;  // For cases where no number precedes the character
        decompressed.append(count, compressed[i]);
        count = 0;  
    }
}

cout  << decompressed << std::endl;

return 0;