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Character in is read from input. Write a while loop that reads characters from input until character $\text{'}q\text{'}$ is read. In each iteration:

Update sumChars with the sum of sumChars and $1.$

Read the next character from input.

Character $\text{'}q\text{'}$ should not be included in the count.

$$ Click here for example

Ex: If the input is $fq,$ then the output is:

$1$