Mark:
ACTCOTEASLSILBLYE = totally inaccessible  
 
 
ATRCOTOIPOSN = troops in action  
 
 
The answers appear to fulfill the constraints of the problem.  
 
  
You're confused!  I am so confused; I thought a quarterback was a refund.  
A cube of metal has a side between 9.5 and 10.5 metres. The cube is melted down and the metal obtained is turned into a number of small cubes whose sides are all between 9.5 and 10.5 centimetres.
The number of cubes made was a 6 digit number; 
abcdef. 
That number was the smallest number of cubes that could have been made that way. 
In the following sum, each letter represents a digit.
R S T S T S + R T R U T T = a b c d e f
Provide the value of R U S T  
