a = input()
s = ''
for i in range(0,len(a)) :
    if a[i].isdigit():
        s = s + a[i]
    else:  
        if s == '':
            print(a[i],end = '')
        else:
            print(a[i]*int(s), end='')
            s = ''
   
/**************************************************************
	Problem: 1104
	User: admin
	Language: Python
	Result: Accepted
	Time:89 ms
	Memory:34480 kb
****************************************************************/