Driver code
public static void Main ( ) { string s = " abujm ▁ zvcd ▁ acefc ▁ deghf " + " ▁ gijklem ▁ n ▁ o ▁ p ▁ pafqrstuvwxyzfap " ; int n = s . Length ; if ( isPanalphabeticWindow ( s , n ) ) Console . WriteLine ( " YES " ) ; else Console . WriteLine ( " NO " ) ; } }