Here are the codes for producer and consumer problems Producer: while (true) {/*produce an item in next produced*/while (counter - BUFFER SIZE);/*do nothing*/buffer[in] = next_produced; in = (in + 1)% BUFFER SIZE; counter++;} Consumer: while (true) {while (counter == 0);/*do nothing*ext consumed - buffer[out]; out - (out + 1)% BUFFER_SIZE; counter;/*consume the item in next consumed*/} counter++ could be implemented by Producer as register1 = counter register1 = register 1 + 1 counter = register1 counter-- could be implemented by Consumer as register2 = counter register2 = register2 - 1 counter = register2 If we set the current value of "counter "as 7, when Producer and Consumer concurrently execute one time, what are the possible values of "counter", please give an example for each values