s = input()
st_num = []
st_s = []
ok = False
res = ''
num = ''
s1 = ''
now = ''
count = 0
for c in s:
    if c == '(':
        ok = True
        if s1 != '':
            st_s.append(s1)
            s1 = ''
        if num != '':
            st_num.append(int(num))
            num = ''
        if st_s:
            b = st_s.pop()
            if count > 0:
                now += b
            res += b
        count += 1
    elif c == ')':
        count -= 1
        if s1 != '':
            st_s.append(s1)
            s1 = ''
        if num != '':
            st_num.append(int(num))
            num = ''
        if ok:
            ok = False
            n = st_num.pop()
            b = st_s.pop()
            res += n * b
            now += n * b
        elif st_s:
            b = st_s.pop()
            res += b
            now += b
        if count == 0:
            if st_num:
                res += (st_num.pop() - 1) * now
            now = ''
    elif c.isdigit():
        num += c
        if s1 != '':
            st_s.append(s1)
            s1 = ''
    else:
        s1 += c
        if num != '':
            st_num.append(int(num))
            num = ''

while st_num:
    res *= st_num.pop()
if s1:
    res += s1
print(res)