petyahelp

s = input()
if s == '()':
    print()
else:

    for i in range(s.count('(')):
        y = s.find(')')
        x = s.rfind('(')

        s1 = s[x+1:y]
        a = ''
        while '0' <= s1[0] <= '9':
            a += s1[0]
            s1 = s1[1:]
        s1 = s1*int(a)
        s = s.replace(s[x:y+1], s1, 1)
    print(s)