If you're looking to pass standard output from your prescript to the script, you could do something like:
./daedalus_linux_1.3_64 1 `<prescript>`
If the prescript prints output from each iteration of the for loop (i=0, i=1) on separate lines, you could probably pipe the output generated by your prescript to the xargs command.
In the prescript, you could change the output formatting to display all output generated by each iteration of qsub on a single line as follows:
for((i=0; i < 2; i++)); do qsub test_S17_script.sh $i; done | xargs
or you can use xargs as follows:
./daedalus_linux_1.3_64 1 `<prescript> | xargs`
Hope that helps.