#include <iostream>
using namespace std;

class IntegerSet{
	public:
		IntegerSet(int);
		~IntegerSet(){};
		IntegerSet Union_of_Set(IntegerSet);
		IntegerSet Intersection_of_Set(IntegerSet);
		void InsertElement(int);
		void DeleteElement(int);
		bool isEqualTo(IntegerSet);
		void printSet();
	private:
		bool set[100];
		int size;
};

IntegerSet::IntegerSet(int count){
	this->size =count;
	for (int i=0;i<count;i++)
	{
		IntegerSet::set[i]=false;
	}
}
//為什麼要用this，不能用size=count嗎？ 
//為什麼可以知道size=6
//為什麼 IntegerSet::set[i]=false; 這行要打integerSet::
//這個for迴圈是做什麼？ 

IntegerSet IntegerSet::Union_of_Set(IntegerSet set2){ 
	IntegerSet union_of_set(100);
	for (int i=0; i<size; i=i+1){
		if (this->set[i]==true or set2.set[i] == true){
			union_of_set.InsertElement(i);
		}
	}
	return union_of_set;
}
//這裡的for迴圈表示什麼阿

IntegerSet IntegerSet::Intersection_of_Set(IntegerSet set2){ 
	IntegerSet intersection_of_set(100);
	for (int i=0; i<size; i=i+1){
		if (this->set[i]==true and set2.set[i] == true){
			intersection_of_set.InsertElement(i);
		}
	}
	return intersection_of_set;
}

void IntegerSet::InsertElement(int index){
	set[index] = true;
}

void IntegerSet::DeleteElement(int index){
	set[index] = false;
}

bool IntegerSet::isEqualTo(IntegerSet set2){
	for (int index=0; index<size; index++){
		if (this->set[index] != set2.set[index] ){
			return false;
		}
	}
	return true;
}

void IntegerSet::printSet(){
	for (int index=0; index<size; index++){
		if (set[index] == true){
			cout << index << '_';
		}
	}
}






int main()
{ 
	int insert_1,insert_2,insert_3,insert_4,insert_5,insert_6;
	IntegerSet testset1(100),testset2(100),testset3(100),testset4(100);
	
	cin >> insert_1 >> insert_2 >>insert_3 >>insert_4 >> insert_5 >>insert_6;
	
    testset1.InsertElement(insert_1);
    testset1.InsertElement(insert_2);
    testset1.InsertElement(insert_3);
    testset1.InsertElement(insert_4);
    testset1.InsertElement(insert_5);
    testset1.InsertElement(insert_6);
    testset1.printSet();
    cout<< endl;
    
    testset2.InsertElement(3);
    testset2.InsertElement(5);
    testset2.InsertElement(6);
    testset2.InsertElement(8);
    testset2.InsertElement(9);
    testset2.InsertElement(44);
    testset2.printSet();
    cout<< endl;
    
    testset3 = testset1.Union_of_Set(testset2);
    testset3.printSet();
    cout<< endl;
    
    testset4 = testset1.Intersection_of_Set(testset2);
    testset4.printSet();
    cout<< endl;
    
    if (testset1.isEqualTo(testset2)){
    	cout << 1 << endl;
	}
	else{
		cout << 0 << endl;
	}
    return 0;
}

非常感謝!