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import java.util.Scanner; public class TableOrder { public static void main ( String [ ] args ) { Scanner scanner = new Scanner ( System .

import java.util.Scanner;
public class TableOrder {
public static void main(String[] args){
Scanner scanner = new Scanner(System.in);
// Read the number of parties
int n = scanner.nextInt();
// Initialize an array to store the count of each table size
int[] tables = new int[4]; // Sizes: 2,4,6,8
// Process each party size and update the table count
for (int i =0; i < n; i++){
int group = scanner.nextInt();
int idx =(group -1)/2;
tables[idx]++;
}
// Output the result in ascending order of popularity
for (int i =0; i <4; i++){
int size =2*(i +1);
System.out.println(size +": "+ tables[i]);
}
}
}

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