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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. char c1,c2;
  5. c1='a';c2='b';
  6. c1=c1-32;c2=c2-32;
  7. printf("%c,%c\n",c1,c2);
  8. return 0;
  9. }
  10.  
Success #stdin #stdout 0s 5436KB
stdin
Standard input is empty
stdout
A,B