print(input)
    [1] "daily.rainfall_2018-01-02_10km.tif" "daily.rainfall_2018-01-03_10km.tif"
      [3] "daily.rainfall_2018-01-04_10km.tif" "daily.rainfall_2018-01-05_10km.tif"
      [5] "daily.rainfall_2018-01-06_10km.tif" "daily.rainfall_2018-01-07_10km.tif"
      [7] "daily.rainfall_2018-01-08_10km.tif" "daily.rainfall_2018-01-09_10km.tif"
      [9] "daily.rainfall_2018-01-10_10km.tif" "daily.rainfall_2018-01-11_10km.tif"
     [11] "daily.rainfall_2018-01-12_10km.tif" "daily.rainfall_2018-01-13_10km.tif"
     [13] "daily.rainfall_2018-01-14_10km.tif" "daily.rainfall_2018-01-15_10km.tif
....
361 rows.