foo.c: In function 'main':
foo.c:17:34: error: lvalue required as left operand of assignment
   17 |         else if(k>=23&&k<=26&&k%2=0)
      |                                  ^
foo.c:19:34: error: lvalue required as left operand of assignment
   19 |         else if(k>=23&&k<=26&&k%2=1)
      |                                  ^

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