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Currying

String concatenation

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Write a curried function (using lambdas) that accepts three string arguments and concatenates all in one string following the rules:

String cases: in the result string, first and second arguments must be in lower cases and the third argument must be in upper cases.
Order of arguments concatenation: first, third, second.

Solution format. You may write the result in any valid formats but with ; at the end.

An example of a curried function: x -> y -> ...;

Sample Input 1:

aa bb cc

Sample Output 1:

aaCCbb

Sample Input 2:

AAA bbb CCC

Sample Output 2:

aaaCCCbbb

Write a program in Java 17

import java.util.Scanner;

import java.util.function.Function;

class CurryConcat {

public static String calc(String first, String second, String third) {

Function<String, Function<String, Function<String, String>>> stringFun =

// write your code here

return stringFun.apply(first).apply(second).apply(third);

}

// Don't change the code below

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

System.out.println(calc(scanner.next(), scanner.next(), scanner.next()));

}

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