import sys

def genclients(nom, desde, quants):
    with open(nom, 'w') as f:
        for client in  range(desde , quants):
            f.write('{:04d}'.format(client)+'\n')

if __name__=='__main__':
    genclients(sys.argv[1], int(sys.argv[2]), int(sys.argv[3]))
