foo.cc:1:1: error: stray '\344' in program
    1 | 买铅笔
      | ^
foo.cc:1:2: error: stray '\271' in program
    1 | 买铅笔
      |  ^
foo.cc:1:3: error: stray '\260' in program
    1 | 买铅笔
      |   ^
foo.cc:1:4: error: stray '\351' in program
    1 | 买铅笔
      |    ^
foo.cc:1:5: error: stray '\223' in program
    1 | 买铅笔
      |     ^
foo.cc:1:6: error: stray '\205' in program
    1 | 买铅笔
      |      ^
foo.cc:1:7: error: stray '\347' in program
    1 | 买铅笔
      |       ^
foo.cc:1:8: error: stray '\254' in program
    1 | 买铅笔
      |        ^
foo.cc:1:9: error: stray '\224' in program
    1 | 买铅笔
      |         ^

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