A company has 12 employees, including 8 engineers and 4 managers. The average salary of the engineers is E rupees, and the average salary of the managers is M rupees. When 5 new engineers with an average salary of x rupees and 3 new managers with an average salary of y rupees join the company, the overall average salary of the staff rises by 1000 rupees. If the total salary of the new employees is 1,37,000 rupees, what was the total salary of the original 12 employees?