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COUNTER=1
SUM=0
printf "%d" $COUNTER
while [ $COUNTER -le 100 ]do
SUM='expr $COUNTER+$SUM'
printf "+%d" $COUNTER
COUNTER='expr $COUNTER+1'
done
printf "=%d\n" $SUM
SUM=0
printf "%d" $COUNTER
while [ $COUNTER -le 100 ]do
SUM='expr $COUNTER+$SUM'
printf "+%d" $COUNTER
COUNTER='expr $COUNTER+1'
done
printf "=%d\n" $SUM
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