Imagine a virtual memory system with page size equal to 256 bytes. Only the first 5 entries in the conventional page table of a process are valid, and they contain the following frame numbers (in hexadecimal): 917, 471, 72, 588, 477. The numbering of virtual pages and physical frames both start at 0. What is the corresponding virtual address (in hexadecimal) to the physical address 0x7282? Write -1 if no virtual address corresponds to the given physical address.