Alice and Bob are trying to exchange keys using the BB$84$ protocol. $($Note: there are spaces included

between every four qubit values and measurement bases for readability$).$

Alice transmitted the following string:

$11010111001000110011$

Bob received the following string:

$10101000111111000001$

Alice used the following sequence of measurement bases to transmit qubits:

ll$$l $$l $$l$$l $$ll$$ l$$l

Bob used the following sequence of measurement bases to measure qubits:

l$$l$$ lll$$l$$l ll$$l l$$l

Show if there was an evesdropper. Justify your answer