void DocFIle(int n,int a[]){
	FILE *f = fopen("1.txt","r+");
	if (f == NULL) cout << "Khong ton tai file";
	else {
		fscanf(f,"%d",&n);
		cout << n << "\n";
		for (int i=0;i < n;i++)		{
			fscanf(f,"%d",&a[i]);
		}
	}
	
	for (int i=0;i<n;i++){
		if (a[i] % 2 == 0){
			cout << a[i] << " la phan tu chan\n";
		} else {
			cout << a[i] << " la phan tu le\n";
		}
	}
	
	
	fclose(f);
}


int main() {
	FILE *f = fopen("1.txt","r+");
	if (f == NULL){
		cout << "khong mo dc file";
	} else {
		char buff[255];
		while(fscanf(f,"%s", buff) != EOF){
			cout << buff << "\n";
		}
		fclose(f);		
	}
	return 0;
}