grades5.txt

 10.0  20.0  30.0  40.0  50.0
100.0  90.0  80.0  70.0  60.0
 95.0  85.0  75.0  65.0  55.0
 25.2  27.2  29.3  31.2  33.2
 88.9  78.8  68.7  58.6  48.5
 10.1  20.1  30.1  40.1  50.1
100.1  90.1  80.1  70.1  60.1
 95.1  85.1  75.1  65.1  55.1
 25.2  27.3  29.4  31.3  33.3
 88.0  78.9  68.8  58.7  48.6
 10.9  20.8  30.7  40.6  50.5
100.9  90.8  80.7  70.6  60.5
 95.9  85.8  75.7  65.6  55.5
 25.8  27.7  29.6  31.5  33.4
 88.7  78.6  68.5  58.4  48.3
 20.0  30.0  40.0  50.0  60.0
 90.0  80.0  70.0  60.0  50.0
 85.0  75.0  65.0  55.0  45.0
 45.2  47.2  49.3  51.2  53.2
 48.9  58.8  68.7  78.6  88.5
 62.5  32.5  65.7  83.5  98.3
 99.5  42.0  97.2  74.9  88.8
 77.7  88.8  99.9 100.0  49.4
 60.0  65.0  70.0  75.5  80.0
 99.9  98.9  99.0  97.5  96.5
 98.0  88.0  86.3  81.0  82.3

 77.8  79.9  81.9  94.5  87.0
 20.0  30.0  40.0  50.0  70.0
 90.0  80.0  70.0  70.0  50.0
 85.0  75.0  75.0  55.0  45.0