Driver code
public static void main ( String [ ] args ) { String X = " ef " ; String Y = " gh " ; System . out . println ( " Minimum ▁ Cost ▁ to ▁ make ▁ two ▁ strings ▁ " + " ▁ identical ▁ is ▁ = ▁ " + findMinCost ( X , Y , 10 , 20 ) ) ; } }