D

f = open("input.txt")
g = {}
m = 0
for i in f:
    a = i.split()
    if(a[0] == 'DEPOSIT'):
        g[a[1]] = g.setdefault(a[1],0)+int(a[2])
    elif(a[0] == 'WITHDRAW'):
        g[a[1]] = g.setdefault(a[1],0)-int(a[2])
    elif(a[0] == 'BALANCE'):
        print(g.get(a[1],'ERROR'))
    elif(a[0] == 'WITHDRAW'):
        g[a[2]] = g.setdefault(a[2],0)+int(a[3])
        g[a[1]] = g.setdefault(a[1],0)-int(a[3])
    elif(a[0] == 'INCOME'):
        for i,v in g.items():
            if(v > 0):
                g[i] += int(v*float(a[1])/100.)