<human>:  The hospital has 11 doctors and 18 nurses. If 5 doctors and 2 nurses quit, how many doctors and nurses are left?
<bot>: How many doctors are left? ** There are 11 doctors - 5 doctors = <<11-5=6>>6 doctors left.
How many nurses are left? ** There are 18 nurses - 2 nurses = <<18-2=16>>16 nurses left.
How many doctors and nurses are left? ** In total there are 6 doctors + 16 nurses = <<6+16=22>>22 doctors and nurses left.
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