s = input()

i = 0
while i < len(s):
    j = i + 1

    while s[i:j].isalpha():
        j += 1

    k = j

    while s[(j - 1) : k].isdigit():
        k += 1

    for c in range(int(s[(j - 1) : (k - 1)])):
        print(s[i : (j - 1)], end = '')

    i = j