import java.util.*;
import java.io.*;
public class ArrayPractice{
Random rand = new Random();
public int[] RevFill(int n){
int[] ans = new int[n];
int counter = 0;
for (int i=n;i>0;i--){
ans[counter] = i;
counter ++;
}
return ans;
}
public int[] MakeRandom(int size, int min, int max){
int[] ans = new int[size];
for (int i=0;i<ans.length;i++){
ans[i] = rand.nextInt(max-min+1)+min;
}
return ans;
}
public int sum13(int[] nums) {
int sum = 0;
for(int i=0;i<nums.length;i++){
if (nums[i] != 13){
sum = sum + nums[i];
}else if(nums[i] == 13 && i != nums.length-1){
nums[i+1] = 0;
}
}
return sum;
}
public boolean only14(int[] nums) {
boolean ans = true;
for (int i=0;i<nums.length;i++){
if (nums[i] != 1 && nums[i] != 4){
ans = false;
}
}
return ans;
}
}