RSA algorithm to encrypt "abcdefghij"

[shivajikobardan]

Say p=5, q=11

z=(p-1)*(q-1)
=40

d relatively prime to z, so d=27

de mod z=1
27e mod 40=1
e=3

$C=M^e mod \; n$

For d, M=4

C=$4^3 mod 55$

Am I right here?