/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.Scanner;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
int n, c = 0;
Scanner in
= new Scanner
(System.
in); String reader
= in.
nextLine();
for ( int i = 0; i < 10; i++ ) //цикл, перебирающий все варианты первой цифры трехзначного числа
{
for ( int j = 0; j < 10; j++ ) //вложенный цикл, перебирающий все варианты второй цифры
{
if ( n - i - j >= 0 && n - i - j < 10 ) //условие для третьей цифры
{
c++;//подсчет подходящих номеров
}
}
}
System.
out.
println(c
*c
); //увеличение количества в c раз для шестизначного числа }
}
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