Filtering and transforming a list using lambda expressions

Kotlin Medium lambdas

Task «Filtering and transforming a list using lambda expressions»

Write a program in Kotlin that reads an integer N, then N lines. Each line contains an integer and a word separated by a space. Using lambda expressions and higher-order functions (filter, map, forEach), you need to filter only those lines where the number is positive, then convert each word to uppercase and output them in the same order as they were in the original list. If no elements remain after filtering, output "NO DATA".

Input Format

First line: an integer N (1 ≤ N ≤ 100). Then N lines, each containing an integer and a word (only Latin letters, length from 1 to 20).

Output Format

Strings with transformed words, each on a new line. If there are no suitable elements, output "NO DATA".

Examples

Example 1

INPUT

3
-5 cat
-2 dog
-1 fish

OUTPUT

NO DATA

Example 2

INPUT

1
7 hello

OUTPUT

HELLO

Example 3

INPUT

OUTPUT

500
1500
200

main.kt