import java.util.*;class Pattern {public static void main(String[] args){Scanner sc= new Scanner(System.in);System.out.println("enter the n and m=");int n=sc.nextInt();int m=sc.nextInt();for(int i=1; i<=n; i++){for(int j=1; j<= m; j++){System.out.print((char)(j+96)+" ");}System.out.println();}}}
