Driver Code
public static void Main ( ) { String X = " OldSite : GeeksforGeeks . org " ; String Y = " NewSite : GeeksQuiz . com " ; int m = X . Length ; int n = Y . Length ; Console . Write ( " Length ▁ of ▁ Longest ▁ Common " + " ▁ Substring ▁ is ▁ " + LCSubStr ( X , Y , m , n ) ) ; } }