- /* 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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