Write a programElementary20 XPExercise 8/15

The second largest number

Task

The user enters whole numbers. The user enters the numbers one per line and ends with -1, which is not part of the result.

The program prints the second largest number - the second largest of the *distinct* values (for 5, 8, 8, 3 it is 5). If there is no such number, it prints neexistuje (does not exist).

Examples

Input
```
4
9
2
7
-1
```
Expected output
```
7
```

After you submit, 5 hidden tests will also check your solution: the largest number twice, a single number, no numbers, negative numbers, all equal.

Python starts the first time you run code.

cisla = []
x = int(input())
while x != -1:
    cisla.append(x)
    x = int(input())

Ctrl+Enter runs the program. Tab indents. Press Esc, then Tab, to leave the editor.

Input (stdin)

Each line = one call to input().

Output

Hints

Try it yourself first. Each hint reveals a little more - and lowers the reward a little.

Signed out, hints are free - but no XP is awarded either.

Solution

The solution unlocks after the last hint.