create dev channel

zeta/py/completed/2941.py

@@ -0,0 +1,33 @@
+inp = input()
+
+l = 0
+forforw = None
+forw = ''
+for i in inp:
+
+    if i == '=':
+        if forw in ('c', 's'):
+            pass
+
+        elif forw == 'z':
+            if forwforw == 'd':
+                l -= 1
+            else:
+                pass
+        else:
+            pass
+    elif i == '-':
+        if forw in ('c', 'd'):
+            pass
+    elif i == 'j':
+        if forw == 'n' or forw == 'l':
+            pass
+        else:
+            l += 1
+    else:
+        l += 1
+
+    forwforw = forw
+    forw = i
+
+print(l)