"000" is a string commonly found in weak passwords. Remove all occurrences of "000" from secretStr. Then, assign lengthStr with the length of secretStr.

Ex: If the input is 000XjVx8zGhLM%P000, then the output is:

Remaining string: XjVx8zGhLM%P Length: 12

Note:

string.find(item) returns the index of the first occurrence of item in string. If no occurrence is found, then the function returns string::npos.

string.replace(indx, num, subStr) replaces characters at indices indx to indx+num-1 with a copy of subStr.