package test;

import java.util.Scanner;

public class pratice {

private static Scanner in;

public static void main(String[] args) {
in = new Scanner(System.in);
int line ;
long b = 0, c = 0,d = 0;

while (in.hasNext()) {
int[] num = new int[in.nextInt()];
for(int a:num){
num[a] = in.nextInt() ;
if(num[a] % 3 ==0){
b++;
}else if(num[a] % 3 ==1){
c++;
}else if(num[a] % 3 ==2){
d++;
}
}

System.out.println(b+" "+ c +" "+ d);

}

}

}

import java.util.Scanner;
public class Rayark{
public static void main(String []args){
Scanner maimai = new Scanner(System.in);
 int c1=0;
int c2 =0;
int c3 =0;

int m =maimai.nextInt();
  while(m!=0){
int u=m%3;
 switch(u) {
 case 0:
c2++;
break;
case 1:
 c1++;
break;
case 2:
c3++;
break;
}
m --;
}
System.out.println(c1+" "+c2+" "+c3);
}
}
這樣寫也可以