s=$(echo $(ls *JPG | wc -l) -3 | bc);
for i in $(seq 0 3 $s); do j=$(echo "$i+1" | bc); k=$(echo "$i+2" | bc);
echo "c n$i N$j x492.08 y584.21 X492.08 Y584.21 t0
c n$i N$j x2181.18 y620.08 X2181.18 Y620.08 t0
c n$i N$j x396 y3585 X396 Y3585 t0
c n$i N$j x2333.13 y3437.67 X2333.13 Y3437.67 t0
c n$i N$j x1196.26 y1935.27 X1196.26 Y1935.27 t0
c n$i N$k x492.08 y584.21 X492.08 Y584.21 t0
c n$i N$k x2181.18 y620.08 X2181.18 Y620.08 t0
c n$i N$k x396 y3585 X396 Y3585 t0
c n$i N$k x2333.13 y3437.67 X2333.13 Y3437.67 t0
c n$i N$k x1196.26 y1935.27 X1196.26 Y1935.27 t0" >> J1.pto;
done