diff --git a/days/17.go b/days/17.go
index dfd0217..b9ef746 100644
--- a/days/17.go
+++ b/days/17.go
@@ -272,5 +272,65 @@ func (d *Day17) Part2() string {
 		instructions = append(instructions, fmt.Sprintf("%d", numMoved))
 	}
 
-	return fmt.Sprintf("%s%s%s", u.TextBold, strings.Join(instructions, ","), u.TextReset)
+	workingInstructions := make([]string, len(instructions))
+	copy(workingInstructions, instructions)
+
+	instructionStr := strings.Join(workingInstructions, ",")
+	progs := make([][]string, 3)
+	for i := 0; i < 3; i++ {
+		numFound := 3
+		subLen := 4
+		for numFound >= 3 {
+			numFound = 0
+			instructionSubset := strings.Join(workingInstructions[0:subLen], ",")
+			for x := 0; x <= len(instructionStr)-len(instructionSubset); x++ {
+				if instructionStr[x:x+len(instructionSubset)] == instructionSubset {
+					numFound++
+				}
+			}
+			if numFound >= 3 {
+				subLen += 2
+			}
+		}
+		if numFound < 3 {
+			subLen -= 2
+		}
+		progs[i] = make([]string, subLen)
+		copy(progs[i], workingInstructions[0:subLen])
+
+		instructionStr = strings.ReplaceAll(instructionStr, strings.Join(progs[i], ","), "")
+		instructionStr = strings.TrimPrefix(strings.ReplaceAll(instructionStr, ",,", ","), ",")
+
+		if len(instructionStr) == 0 {
+			workingInstructions = nil
+		} else {
+			workingInstructions = strings.Split(instructionStr, ",")
+		}
+	}
+
+	if workingInstructions != nil {
+		panic("didn't empty instructions")
+	}
+	instructionStr = strings.Join(instructions, ",")
+	instructionStr = strings.ReplaceAll(instructionStr, strings.Join(progs[0], ","), "A")
+	instructionStr = strings.ReplaceAll(instructionStr, strings.Join(progs[1], ","), "B")
+	instructionStr = strings.ReplaceAll(instructionStr, strings.Join(progs[2], ","), "C")
+
+	instructionStr = fmt.Sprintf("%s\n%s\n%s\n%s\nn\n",
+		instructionStr,
+		strings.Join(progs[0], ","),
+		strings.Join(progs[1], ","),
+		strings.Join(progs[2], ","),
+	)
+
+	d.program.Reset()
+	d.program.SetMemory(0, 2)
+	dustCollected := int64(0)
+	d.program.RunIn(func(inputStep int) int64 {
+		return int64(instructionStr[inputStep-1])
+	}, func(val int64, state u.IntcodeProgramState) {
+		dustCollected = val
+	})
+
+	return fmt.Sprintf("Dust collected after traveling all paths: %s%d%s", u.TextBold, dustCollected, u.TextReset)
 }