Fix java ver. Update Python ver. Got rid of binary

Sum.java

@@ -0,0 +1,19 @@
+public class Sum {
+  public static void main(String[] args) {
+    long start = System.currentTimeMillis();
+    long number = 1_000_000_000;
+    long result = 0;
+
+    for (int i = 0; i <= number; i++) {
+        long tmp = i;
+        while (tmp > 0) {
+            result = result + tmp % 10;
+            tmp = tmp / 10;
+        }
+    }
+    System.out.println(result);
+    long finish = System.currentTimeMillis();
+    long elapsed = finish - start;
+    System.out.println("Прошло времени, мс: " + elapsed);
+  }
+}