xcode - Expression result unused objective-c -

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i nooby gets. can please tell me how fix this?

#include <stdio.h>  int main(int argc, const char * argv[]) {         int sum;        sum = 50 + 25;     "the sum of 50 , 25 %i", sum ;      return 0; }

change line:

"the sum of 50 , 25 %i", sum ;

to:

printf( "the sum of 50 , 25 %i", sum );

the line in quotes syntax error happens getting compiler (which apparently throwing warning instead).


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