#include<stdio.h>
int main()
{
    fun num;
    int num1 = 20;
    int num2 = 30;
    num1 =(num1+num2)-(num2=num1);
    printf("%d%d",&num1,&num2);
    return 0;
}
int main()
{
    int arr[] ={10,20,30,40,50},ind;
    for(ind=0;ind<5;i++)
        printf("%d",*(arr+ind));
    for(ind =0;ind<5;ind++)  
        printf("%d",*(arr[ind]));
        return 0;
        }
    }