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import java.util.Scanner;

class FloydTriangle

{

public static void main(String[] args)

{

Scanner sc = new Scanner(System.in);

System.out.println("Enter the number of rows which you want in your Floyd Triangle: ");

int r = sc.nextInt();

int n=0;

for(int i=0; i<r; i++)

{

for(int j=0; j<=i; j++)

{

System.out.print(++n+" ");

}

System.out.println();

}