d066. 上學去吧！ -- 板橋高中教學題 | From: [49.159.84.117] | 發表日期 : 2022-01-09 23:33

print((lambda time: "At School"if time[0]*60+time[1]>=450 and time[0]*60+time[1]<1020 else "Off School")([int(i) for i in input().split()]))