#!/bin/bash
f() {
t=0 ;# if this was a standalone program, t is auto initialised to 0
# The following lines may be put in a standalone script file and run as is:
b=10
for i;{((t+=$b#$i,b=i));}
echo $t
}
for testcase in \
"4 12 34 20 14 6 25 13 33" \
"5 14 2 11 30 18" \
"12 11 10 9 8 7 6 5 4 3 12 2 11 3 10 2 10" \
"36 36"
do
f $testcase
done
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