void sort(int* a, int* b, int* c, int size_a, int size_b)
{
	for(int i=0, j=0, k=0; k < size_a + size_b;) {
		if( a[i] > b[j] )
			c[k] = a[i++];
		else if ( a[i] < b[j] )
			c[k] = b[j++];
		else
			c[k] = a[i++], ++j;
		++k;

	}
}