Diffing "N!" and "N!_2"

Title: N! N!_2
Author: jed pack peng
Submitted: 2003-11-04 16:28:52 UTC 2003-11-04 16:59:04 UTC
Status: Passed Passed
Score: 53.0 53.0
Result: pass pass
CPU Time: 0.09 0.15
Code:
b=kron(a*0+1,b);
i=a~=' ';
a(i)=97+rem(a(i)-12+b(i),26);
c=a;