Question 10
An electronic noticeboard program uses + to join quoted text strings. Although + can mean numerical addition, inside quoted text it is an ordinary displayed character. For example “10:47” + “ ” + “BEAVER FALLS” + “ - ” + “PLATFORM” + “ ” + “3” displays “10:47 BEAVER FALLS - PLATFORM 3”. What does “7 + 8” + “ + ” + “1 + ” + “2” + “5” display?