3D matrix of user defined type in C++ and the size is defined by user input

#include <iostream>
#include <vector>
using namespace std;


class spin_cite
{
public:
	spin_cite() {}
	int val;
	int x;
	int y;
	int z;
	bool check;
	spin_cite(int X, int Y, int Z, int VAL, bool CHECK)
	{
		x = X;
		y = Y;
		z = Z;
		val = VAL;
		check = CHECK;
	}
};

using elem = vector<spin_cite>;
using elem_arr = vector<elem>;
vector<elem_arr> a;

int main()
{
	cout << "Set dims like: x,y,z" << endl;

	short x = 0, y = 0, z = 0;
	((cin >> x).ignore(1, ',') >> y).ignore(1, ',') >> z;

	cout << "alloc a 3d array: " << x << ',' << y << ',' << z << endl;

	for (short ix = 0; ix < x; ++ix)
	{		 
		elem_arr ea(y);
		for (int iy = 0; iy < y; ++iy)
		{
			elem e(z);
			for (int iz = 0; iz < z; ++iz)
			{
				// access every unit's members
				e[iz].x = 1;
				e[iz].y = 1;
				e[iz].z = 1;
				e[iz].val = 1;
				e[iz].check = 1;
			}
			ea[iy] = std::move(e);
		}

		a.push_back(std::move(ea));
	}

	cout << "a.size == " << a.size() 
		<< ", a[0].size == " << a[0].size() 
		<< ", a[0][0].size== " << a[0][0].size() 
		<< endl;

	return 0;
}