import java.util.*;
import java.lang.*;
import java.io.*;
class Ideone
{
public static void main
(String[] args
) {
int x; //описание переменных
boolean mult1, mult2;
System.
out.
printf("Enter x=\n"); Scanner sc
= new Scanner
(System.
in); x = sc.nextInt();
mult1 = (x % 3 == 0);
x=x/100+x/10%10+x%10;
mult2 = (x % 3 == 0);
if (mult1
== mult2
) System.
out.
printf("not refuted"); //проверка признака else System.
out.
println("refuted"); }
}
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