Is z happy in the string:
True
( 'z' is happy when there is another 'z' immediately to its left or right )
“azzlea”
another 'z' in its right
“ a z z l e a ”
Checking for z is happy or not
Is z happy in the string:
False
( 'z' is happy when there is another 'z' immediately to its left or right )
“azmzlea”
“azmzlea”
Checking for z is happy or not
'z' is not immediately left or right of another z
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