We have two products X and Y. However, our machine can only be set up to process one type of product each time. The weekly demands for products X and Y are 30 and 50, respectively. The weekly holding cost for both X and Y are $1. It cost $20 (respectively, $54) for setting up the machine for product X (respectively, Y). The weekly production rate for products X and Y are 80 and 100, respectively. Based on the information above, what is the overall cycle time? (round to xxx)