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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int i,sum;
  5. sum = 0;
  6. for(i = 1;i <= 1000;i ++){
  7. if(i % 10 == 3){
  8. sum = sum+i;
  9. }
  10. }
  11. printf("sum=%d",sum);
  12. return 0;
  13. }
  14.  
Success #stdin #stdout 0s 5304KB
stdin
Standard input is empty
stdout
sum=49800