import sys


def fix_vsource(in_file, out_file):
    t = 0.0
    skip_this = False
    skip = True if "msource" in in_file else False
    if skip:
        print("skipping lines for msource.th")

    with open(in_file) as input:
        with open(out_file, 'w') as output:
            for line in input.readlines():
                if skip and skip_this is True:
                    skip_this = False
                    output.write(line)
                    continue
                skip_this = True
                comps = line.split(maxsplit=1)
                comps[0] = str(t)
                output.write(' '.join(comps))

                t += 3600.0


if __name__ == '__main__':
    file = sys.argv[1]
    fix_vsource(file, f'{file}.fixed')
    # fix_vsource('vsource.th', 'vsource.th.fixed')