The present invention provides methods and systems for assembling a genome from a shot-gun set of end sequenced DNA fragments. The groove has an open end and a closed end opposite to the open end. A careful design of the PLL allows setting the poles and zeros of the PLL TF to fixed values, independent of process and temperature. If the correspondence detector has found the correspondence, a stored data selecting section selectively outputs, on a byte-by-byte basis, either the output of the masked ROM or correction data in accordance with the address signal and the correction address. A diagonal reinforcement is located above the floor panel and abuts against the cross member in the longitudinal direction of the motor vehicle body.