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diy2.py

-import 
\ No newline at end of file
+def fei(mouth):
+    if fei(mouth)<=2:
+        return 2
+    else:
+        i=1
+        c=1
+        mouth-=2
+        for j in range(mouth):
+            b=i
+            i=i+c
+            c=b
+i=int(input('shit'))
+print(i)
+
+            
+