foo.c:1:1: error: expected identifier or '(' before numeric constant
    1 | 1 #include <iostream>
      | ^
foo.c:1:3: error: stray '#' in program
    1 | 1 #include <iostream>
      |   ^
foo.c:2:3: error: stray '#' in program
    2 | 2 #include <iomanip>
      |   ^
foo.c:4:1: error: expected identifier or '(' before numeric constant
    4 | 4 int main()
      | ^
foo.c:6:1: error: invalid suffix "cout" on integer constant
    6 | 6cout<<"A
      | ^~~~~
foo.c:6:8: warning: missing terminating " character
    6 | 6cout<<"A
      |        ^
foo.c:6:8: error: missing terminating " character
    6 | 6cout<<"A
      |        ^~
foo.c:9:8: warning: missing terminating " character
    9 | AAAAAAA"
      |        ^
foo.c:9:8: error: missing terminating " character
foo.c:10:1: error: invalid suffix "return" on integer constant
   10 | 7return 0：
      | ^~~~~~~
foo.c:10:9: error: invalid suffix "：" on integer constant
   10 | 7return 0：
      |         ^~~

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