<human>:  There are 235 books in a library. On Tuesday, 227 books are taken out. On Thursday, 56 books are brought back and 35 books are taken out again on Friday. How many books are there now?
<bot>: How many books were left after Tuesday? ** On Tuesday, 227 books were taken, so there are 235 - 227= <<235-227=8>>8 books left.
How many books are there now? ** 56 books were brought back on Thursday, so there are 8 + 56 = <<8+56=64>>64 books in the library.
How many books are there now? ** Finally, 35 books are taken out on Friday, leaving 64 - 35 = <<29=29>>29 books available.
#### 29