Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote

Hardcoded string input filtering : check if there is only numbers construction : concatenation with simple quote