dnk = str(input())
new_dnk = ''
algo = []
old_dnk = ''

for i in dnk:
    if dnk.count(i) >= 2 and i not in new_dnk:
        new_dnk += i + str(dnk.count(i))
        algo.append(i)
        algo.append(str(dnk.count(i)))
    elif i not in new_dnk:
        new_dnk += i
        algo.append(i)
print(new_dnk)

for i in range(len(algo)):
    d = i + 1
    try:
        old_dnk += algo[i] * int(algo[d])
        i += 1
    except:
        if algo[i].isdigit() == True:
            pass
        else:
            old_dnk += algo[i]

print(old_dnk)