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<script type="text/javascript"> var i,sum=0; for(i=1;i<=100;i++){ if(i%5==0){ sum = sum+i; } } document.write(sum) </script>
<script type="text/javascript"> var i,sum=0; for(i=1;i<=100;i++){ if(i%5==0){ sum = sum+i; } } document.write(sum) </script>