Although your progress towards the Size and Speed goals are not shown until you pass Zero Exterminator [Year 7], all progress you made will be shown at that time. Note that one solution may not work for both Size and Speed. There are 3 tabs within each Year so that you may work on multiple solution options at the same time.

Mail Room [Year 1]

Your program should tell your worker to grab each thing from the INBOX, and drop it into the OUTBOX.

Size (6) and Speed (6)

Busy Mail Room [Year 2]

Grab each thing from the INBOX, and drop each one into the OUTBOX.

Size (3)

Speed (25)

Copy Floor [Year 3]

Ignore the INBOX for now, and just send the following 3 letters to the OUTBOX: B U G

Size (6) and Speed (6)

Scrambler Handler [Year 4]

Grab the first TWO things from the INBOX and drop them into the OUTBOX in reverse order. Repeat until the INBOX is empty.

Size (7) and Speed (21)

Rainy Summer [Year 6]

For each two things in the INBOX, add them together, and put the result in the OUTBOX.

Size (6) and Speed (24)

Zero Exterminator [Year 7]

Send all things that ARE NOT ZERO to the OUTBOX.

Size (4) and Speed (23)

Tripler Room [Year 8]

For each thing in the INBOX, TRIPLE it. And OUTBOX the result.

Size (6) and Speed (24)

Zero Preservation Initiative [Year 9]

Send only the ZEROs to the OUTBOX.

Size (5) and Speed (25)

Octoplier Suite [Year 10]

For each thing in the INBOX, multiply by 8, and put the result in the OUTBOX.

Size (9) and Speed (36)

Sub Hallway [Year 11]

For each two things in the INBOX, first subtract the 1st from the 2nd and put the result in the OUTBOX. AND THEN, subtract the 2nd from the 1st and put the result in the OUTBOX. Repeat.

Size (10) and Speed (40)

Tetracontiplier [Year 12]

For each thing in the INBOX, multiply it by 40, and put the result in the OUTBOX.

Size (14) and Speed (56)

Equalization Room [Year 13]

Get tw0 things from the INBOX. If they are EQUAL, put ONE of them in the OUTBOX. Discard non-equal pairs. Repeat!

Size (9) and Speed (27)

Maximization Room [Year 14]

Grab TWO things from the INBOX, and put only the BIGGER of the two in the OUTBOX. If they are equal, just pick either one. Repeat!

Size (10) and Speed (34)

Absolute Positivity [Year 16]

Send each thing from the INBOX to the OUTBOX. BUT, if a number is negative, first remove its negative sign.

Size (8) and Speed (36)

Exclusive Lounge [Year 17]

For each TWO things in the INBOX:

Send a 0 to the OUTBOX if they have the same sign. (Both positive or both negative.)

Send a 1 to the OUTBOX if their signs are different. Repeat until the INBOX is empty.

Size (12) and Speed (26)

Countdown [Year 19]

For each number in the INBOX, send that number to the OUTBOX, followed by all numbers down to (or up to) zero. It’s a countdown!

Size (10)

Speed (82)