A shovel according to an embodiment of the present invention has a first pump (14L) for discharging first working oil, a second pump (14R) for discharging second working oil, a pump/electric motor (14A) for discharging third working oil, and a boom cylinder (7) into which at least the second working oil can flow. When an arm cylinder (8) and the boom cylinder (7) operate simultaneously, the arm cylinder (8) is driven by the first working oil or the third working oil, and the boom cylinder (7) is driven by the second working oil.