Write the Boolean equations and draw the logic diagram of the circuit whose outputs are defined by the following truth table

fi 1 0 1 1 1 0 0 1 f2 1 1 0 1 1 0 0 1 a 0 0 0 0 1 1 1 1 b 0 0 1 1 0 0 1 1 c 0 1 0 1 0 1 0 1