lab6: add supplementary files to improve functionality

labs/6/Makefile

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+build:
+	javac *.java
+
+clean:
+	rm *.class

labs/6/plotter.py

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+import matplotlib.pyplot as plt
+
+data = []
+
+while True:
+    try:
+        data.append(list(map(float, input().split())))
+    except:
+        break
+
+#print(list(zip(*data)))
+
+for i in list(zip(*data)):
+    plt.plot(i)
+plt.show()