Challenge activity 5.8.2: nested loops: print seats. given numrows and numcolumns, print a list of all seats in a theater. rows are numbered, columns lettered, as in 1a or 3e. print a space after each seat, including after the last. use separate print statements to print the row and column. ex: numrows = 2 and numcolumns = 3 prints: 1a 1b 1c 2a 2b 2c