save project

star.py

 x = input()
 x = input()
-xx = list(x)
-a = xx.count('1')
-
+xx = x.split(',')
+xx.append('0')
+xx.insert(0,'0')
+a = 0
+for i in range(0,len(xx)-2):
+   if xx[i] == '0' and xx[i+1] == '0' and xx[i+2] == '0':
+      a += 1
+      xx[i+1] = '1'
 print(a)
 print(a)
+      
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