/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int A[] = {21, 17, 4, 51, 24, 75, 40, 27, 48, 72};
int CNT = 0;
 
for (int i = 1; i<10; i++){
	if (A[i]%3==0&&A[i]%4==0){
 
		CNT++;
 
	}
}
 
System.out.print(CNT);
	}
}

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