package java_core;

public class test {
    static int a ;
    static int b = 5;
    public static void main(String args[]){
    for (int i = 1; i<=10; i++){
        for (int j = 1; j<=i; j++){
            System.out.print(j + " ");
        }
        System.out.println();
    }

    }
}