A method wherein a special programming mode of a memory is entered. The personalized jigsaw puzzle is suitable for use as an educational tool and to develop creativity. The second OFDM symbol is adjacent to the first OFDM symbol, and the center subcarriers are part of a system bandwidth and a part of the center subcarriers is not used for mapping the secondary synchronization sequence. The third actuators then draw the first sliding unit and the second sliding unit together thereby drawing the rails together. The roll-formed panel is preferably provided with a flat shelf deformed horizontally to extend lengthwise along the panel downwardly from the top rail. A positive electrified toner for developing an electrostatic image comprises the positive electrified charge control agent.