foo.c:1:1: warning: data definition has no type or storage class
 n=int(input())
 ^
foo.c:1:1: warning: type defaults to 'int' in declaration of 'n' [-Wimplicit-int]
foo.c:1:3: error: expected expression before 'int'
 n=int(input())
   ^~~
foo.c:3:2: error: stray '\302' in program
   print("A")
  ^
foo.c:3:3: error: stray '\240' in program
   print("A")
   ^
foo.c:5:2: error: stray '\302' in program
   print("B")
  ^
foo.c:5:3: error: stray '\240' in program
   print("B")
   ^
foo.c:7:2: error: stray '\302' in program
   print("C")
  ^
foo.c:7:3: error: stray '\240' in program
   print("C")
   ^
foo.c:9:2: error: stray '\302' in program
   print("D")
  ^
foo.c:9:3: error: stray '\240' in program
   print("D")
   ^
foo.c:11:2: error: stray '\302' in program
   print("E")
  ^
foo.c:11:3: error: stray '\240' in program
   print("E")
   ^