‘X’ and ‘Z’ began a business with investments of Rs. 5,500 and Rs. 11,000 respectively. After 5 months, ‘Y’ entered the business contributing Rs. 6,600. 7 months later, ‘Z’ withdrew his full capital. At the end of 24 months, if Y’s profit share is Rs. 1,320, what is the total profit share of X and Z?