Q$-1$ Write a Python program that takes a string keyword from user input. Then print the keyword with all repeated letters replaced by $+.$

Note: Do NOT use the replace$()$ method for this question, you will not receive any credit if you do$.$

Example $1$:

Program Prompt: Enter a keyword:

User response: 'settle'

Program prints: 'set $+1+\text{'}$

Example $2$:

Program Prompt: Enter a keyword:

User response: 'printing'

Program prints: 'print$++$g$\text{'}$