def convert(s1):

st=[0]*100

top=-1

s1=s1+']'

s2=""

t=0

for i in range(len(s1)):

if '0'<=s1[i]<='9':

t=10*t+int(s1[i])

else:

if '0'<=s1[i-1]<='9':

s2=s2+str(t)+' '

t=0

if s1[i]=="(":

top+=1

st[top]=s1[i]

elif s1[i] in '+-*/)':

while top>-1 and yxj[st[top]]>=yxj[s1[i]]:

s2=s2+st[top]+' '

top-=1

if s1[i]==")":

top-=1

else:

top+=1

st[top]=s1[i]

while top>-1:

s2=s2+st[top]+" "

        top-=1

return s2

yxj={"+":2,"-":2,"*":3,"/":3,"(":0,")":1}

sz=input()

print(convert(sz))