import string
import os

for fieldIdx, fieldAndObservations in enumerate(["sstHADOI", "sssAquarius", "mldHolteTalleyARGO"]):

    for seasonIdx, season in enumerate(["ANN", "JFM", "JAS"]):
        
        for startYear in ["0001", "0002", "0003", "0004", "0005", "0006", "0007", "0008", "0009", "0010", "0011", "0012", "0013", "0014", "0015", "0016", "0017", "0018", "0019", "0020", "0021", "0022", "0023", "0024", "0025", "0026", "0027", "0028", "0029", "0030", "0031", "0032", "0033", "0034", "0035", "0036", "0037", "0038", "0039", "0040", "0041", "0042", "0043", "0044", "0045", "0046", "0047", "0048", "0049", "0050"]:

            for endYear in ["0001", "0002", "0003", "0004", "0005", "0006", "0007", "0008", "0009", "0010", "0011", "0012", "0013", "0014", "0015", "0016", "0017", "0018", "0019", "0020", "0021", "0022", "0023", "0024", "0025", "0026", "0027", "0028", "0029", "0030", "0031", "0032", "0033", "0034", "0035", "0036", "0037", "0038", "0039", "0040", "0041", "0042", "0043", "0044", "0045", "0046", "0047", "0048", "0049", "0050"]:

                yearsAveraged = string.atoi(endYear) - string.atoi(startYear) + 1

                command  = "ln -sf %s_20170502.beta1_05.A_WCYCL1850S.ne30_oECv3_ICG.edison_%s_years%s-%s.png image_files/%d_20170502.beta1_05.A_WCYCL1850S.ne30_oECv3_ICG.edison_%d_years%s-%s.png" % (fieldAndObservations, season, startYear, endYear, fieldIdx, seasonIdx, startYear, endYear)

                os.system(command)