import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while(sc.hasNextInt()) {
int n= sc.nextInt();
for(int i=1;i<=n;i++)
{
for(int j=1;j<=i;j++)
{
System.out.print(j+" ");
}
System.out.println();
}
}
}
}

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