using System;

​

//א2 יובל ורומי

void Maagal(int[] arr){

    int last= arr[arr.Length- 1];

    for (int i = arr.Length-1; i>=1; i--){

        arr[i]=arr[i- 1];

    }

arr[0]= last;

​

}

​

int[] arr ={5,7,6,3};

Maagal(arr);

for (int i = 0; i < arr.Length; i++){

        Console.Write(arr[i]);

    }