IP
210.100.0.0
Created
04-14 02:59
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import sys
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def input(): return sys.stdin.readline().rstrip()
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sys.stdin=open('input.txt',"r")
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def f1():
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if ct2: return True
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for i in range(ln-3):
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if ip[i:i+4]=="+^^+":
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return True
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elif ip[i:i+4]=="+^-+":
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return True
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elif ip[i:i+4]=="+-^+":
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return True
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return False
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ip=input()
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ln=len(ip)
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ct1,ct2=0,0
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for i in range(ln-2):
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if ip[i:i+3]=="+^+": ct1+=1
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elif ip[i:i+3]=="-^-": ct2+=1
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if f1(): ct1+=1
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print(ct1-ct2)