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

Ex: If the input is $000$h#$6?$gm&$kvlMV$,$ then the output is:

Remaining string: h#$6?$gm&$kvlMV

Length: $13$

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.