You have decided to create an alternative representation for letters of the alphabet. In your scheme the first $26$ bits of an unsigned integer represent a character of the alphabet and the $27$th bit represents either lowercase or uppercase. The least significant bit $($bit $0)$ is a$,$ the next bit $($bit $1)$ represents b$,$ the next bit $($bit $2)$ represents c$,$ and so on with the last bit $($bit $25)$ representing z$.$ If the capital bit $($bit $26)$ is $1$ it means the letter is uppercase and if it is $0$ it means the letter is lowercase.