Problem-18: F : 0 : 0 : 25 : 36
0 -   (1 = )
0 -  (1 = )
0 -  (1 = )
25 -  
A B C D E F G H I J K L M N O P Q R S T U V W X Y 
A -> E P U 
B -> H Q R U 
C -> D J K O Y 
D -> C M N Q R S 
E -> A 
F -> L T 
G -> I 
H -> B I N S 
I -> G H L Q 
J -> C N O W 
K -> C N U 
L -> F I N R V 
M -> D Q 
N -> D H J K L 
O -> C J 
P -> A 
Q -> B D I M 
R -> B D L 
S -> D H T 
T -> F S 
U -> A B K X 
V -> L 
W -> J 
X -> U Y 
Y -> C X 
