foo.cc: In function 'int main()':
foo.cc:17:15: error: invalid operands of types 'int(int)' and 'int' to binary 'operator%'
   17 |  if(n==m+3&&SN%6==0&&SM%6==0)
      |             ~~^~
      |             |  |
      |             |  int
      |             int(int)
foo.cc:17:22: error: 'SM' was not declared in this scope; did you mean 'SN'?
   17 |  if(n==m+3&&SN%6==0&&SM%6==0)
      |                      ^~
      |                      SN

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