
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Using the provided bar graph, calculate the positive difference between the number of students at the school with the second highest enrollment and the school with the second lowest enrollment.

[asy]
size(250);
defaultpen(fontsize(9));

fill((0,0)--(40,0)--(40,20)--(0,20)--cycle,lightgray);

draw((0,20)--(0,0)--(40,0));

draw((-0.5,2)--(40,2));
draw((-0.5,4)--(40,4));
draw((-0.5,6)--(40,6));
draw((-0.5,8)--(40,8));
draw((-0.5,10)--(40,10));
draw((-0.5,12)--(40,12));
draw((-0.5,14)--(40,14));
draw((-0.5,16)--(40,16));
draw((-0.5,18)--(40,18));
draw((-0.5,20)--(40,20));

filldraw((2.5,0)--(2.5,12.5)--(7.5,12.5)--(7.5,0)--cycle,lightblue);

draw((10,0)--(10,-0.5));
draw((20,0)--(20,-0.5));
draw((30,0)--(30,-0.5));
draw((40,0)--(40,-0.5));

filldraw((12.5,0)--(12.5,14.3)--(17.5,14.3)--(17.5,0)--cycle,lightblue);
filldraw((22.5,0)--(22.5,19)--(27.5,19)--(27.5,0)--cycle,lightblue);
filldraw((32.5,0)--(32.5,17.2)--(37.5,17.2)--(37.5,0)--cycle,lightblue);

label("0",(-0.5,0),W);
label("200",(-0.5,2),W);
label("400",(-0.5,4),W);
label("600",(-0.5,6),W);
label("800",(-0.5,8),W);
label("1000",(-0.5,10),W);
label("1200",(-0.5,12),W);
label("1400",(-0.5,14),W);
label("1600",(-0.5,16),W);
label("1800",(-0.5,18),W);
label("2000",(-0.5,20),W);

label("Varsity",(5,-2));
label("Northwest",(15,-2));
label("Central",(25,-2));
label("Greenbriar",(35,-2));

label("School",(20,-5), fontsize(11));
label(rotate(90)*"Number of Students",(-7,10), fontsize(11));
label("Total Enrollment",(20,24), fontsize(12));

label("1250",(5,12.5),S);
label("1430",(15,14.3),S);
label("1900",(25,19),S);
label("1720",(35,17.2),S);

[/asy]

Present the answer in LaTex format: \boxed{Your answer}
user