English alphabet and the corresponding number for the letter
A – 1
B – 2
C – 3
D – 4
E – 5
F – 6
G – 7
H – 8
I – 9
J – 10
K – 11
L – 12
M – 13
N – 14
O – 15
P – 16
Q – 17
R – 18
S – 19
T – 20
U – 21
V – 22
W – 23
X – 24
Y – 25
Z – 26