foo.cc:4:8: warning: missing terminating " character
    4 |  cout<<"
      |        ^
foo.cc:4:8: error: missing terminating " character
foo.cc:128:1: warning: missing terminating " character
  128 | ";
      | ^
foo.cc:128:1: error: missing terminating " character
  128 | ";
      | ^~
foo.cc: In function 'int main()':
foo.cc:6:1: error: lvalue required as decrement operand
    6 | 2021/1
      | ^~~~
foo.cc:7:1: error: lvalue required as decrement operand
    7 | ----------------------------
      | ^~

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