E

q = int(input())
time = {-10**18: 0}
timeList = [-10**18]
ind = 0
s = 0
for i in range(q):
    query = list(input().split())
    if query[0] == 'ARRIVE':
        s +=int(query[2])
        try:
            time[int(query[1])] += int(query[2])
        except:
            time[int(query[1])] = int(query[2])
            timeList.append(int(query[1]))
    elif query[0] == 'STAT':
        for _ in range(ind, q):
            if (timeList[_]+86400) > timeList[-1]:
                break
            else:
                s -= time[timeList[_]]
        ind = _
        print(s)