Solve the following logic puzzle for final Coordinates
Several of Mr. Carroll's history students each gave an oral presentation today on a different Roman Emperor. Match each student to their emperor and grade, and determine the length of each presentation.
1. Faye didn't talk about Caligula.
2. Rudy spoke 6 minutes less than Steve.
3. The student who gave the presentation on Valerian spoke for a somewhat longer time than the presenter who gave the presentation on Caligula.
4. The presenter who gave the presentation on Constantine spoke for a somewhat shorter time than the student who gave the presentation on Augustus.
5. Johnnie was either the student who gave the presentation on Augustus or the student who spoke for 6 minutes.
6. Of the presenter who gave the presentation on Augustus and the student who gave the presentation on Tiberius, one spoke for 10 minutes and the other was Zachary.
7. Johnnie spoke 4 minutes less than Zachary.

Assume:
41.10.0AB
-81.24.2CD
6 Minutes:
If the Student for this Length was Faye A=2
If the Student for this Length was Johnnie A=0
If the Student for this Length was Rudy A=1
If the Student for this Length was Steve A=3
Caligua
If the Student for this Emperor was Steve B=6
If the Student for this Emperor was Rudy B=9
If the Student for this Emperor was ZacharyB=4
If the Student for this Emperor was Faye B=0
8 Minutes
If the Student for this Length was Faye C=4
If the Student for this Length was Johnnie C=3
If the Student for this Length was Rudy C=7
If the Student for this Length was Steve C=0
Tiberius
If the Student for this Emperor was Steve D=7
If the Student for this Emperor was Rudy D=8
If the Student for this Emperor was Zachary D=1
If the Student for this Emperor was Faye D=5