diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e660fd9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+bin/
diff --git a/bin/lib/TextIO.class b/bin/lib/TextIO.class
deleted file mode 100644
index b051ac0..0000000
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diff --git a/bin/praktikum2/Grupeerija.class b/bin/praktikum2/Grupeerija.class
deleted file mode 100644
index 01b52ea..0000000
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diff --git a/bin/praktikum2/Korrutaja.class b/bin/praktikum2/Korrutaja.class
deleted file mode 100644
index 5e042ae..0000000
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diff --git a/bin/praktikum2/NimePikkus.class b/bin/praktikum2/NimePikkus.class
deleted file mode 100644
index 4191786..0000000
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diff --git a/bin/praktikum2/Tere.class b/bin/praktikum2/Tere.class
deleted file mode 100644
index 8039680..0000000
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diff --git a/bin/praktikum3/CumLaude.class b/bin/praktikum3/CumLaude.class
deleted file mode 100644
index 98b3612..0000000
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diff --git a/bin/praktikum3/ParooliSisestus.class b/bin/praktikum3/ParooliSisestus.class
deleted file mode 100644
index c45c7a9..0000000
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diff --git a/bin/praktikum3/Tehisintellekt.class b/bin/praktikum3/Tehisintellekt.class
deleted file mode 100644
index 34b0a0d..0000000
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diff --git a/bin/praktikum4/numbrid0246.class b/bin/praktikum4/numbrid0246.class
deleted file mode 100644
index c4c186a..0000000
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diff --git a/bin/praktikum4/numbrid110.class b/bin/praktikum4/numbrid110.class
deleted file mode 100644
index 3cf5f1a..0000000
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diff --git a/bin/praktikum4/numbrid302734.class b/bin/praktikum4/numbrid302734.class
deleted file mode 100644
index b49e746..0000000
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diff --git a/bin/praktikum4/table1.class b/bin/praktikum4/table1.class
deleted file mode 100644
index 03c8262..0000000
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diff --git a/bin/praktikum4/table2.class b/bin/praktikum4/table2.class
deleted file mode 100644
index 923e244..0000000
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diff --git a/src/praktikum4/pangapass.java b/src/praktikum4/pangapass.java
new file mode 100644
index 0000000..0737ea3
--- /dev/null
+++ b/src/praktikum4/pangapass.java
@@ -0,0 +1,11 @@
+package praktikum4;
+
+public class pangapass {
+
+	public static void main(String[] args) {
+		for (int i = 0; i <= 9999; i++) {
+			System.out.printf("%04d%n", i);
+		}
+	}
+
+}
diff --git a/src/praktikum4/table2.java b/src/praktikum4/table2.java
index b5d0559..e7d60db 100644
--- a/src/praktikum4/table2.java
+++ b/src/praktikum4/table2.java
@@ -3,28 +3,35 @@ package praktikum4;
 public class table2 {
 
 	public static void main(String[] args) {
-		System.out.printf("Tabeli X suurus: ");
+		System.out.printf("Tabeli suurus: ");
 		int x_size = lib.TextIO.getlnInt();  // table size in x direction
-		System.out.printf("Tabeli Y suurus: ");
-		int y_size = lib.TextIO.getlnInt();  // table size in y direction
+		int y_size = x_size;  // table size in y direction
 		
 		// Create the table
+		System.out.printf("--");
 		for (int x = 0; x <= x_size; x++) {
 			System.out.printf("--");
 		}
-		System.out.printf("%n");
+		System.out.printf("-%n");
 		for (int x = 0; x <= x_size; x++) {
 			System.out.printf("| ");
 			for (int y = 0; y <= y_size; y++) {
-				if (x == y) {
-					System.out.printf("1 ");
+				if (x==y) {
+					System.out.printf("x ");
+				} else if (y+x == x_size) {
+					System.out.printf("x ");
 				} else {
 					System.out.printf("0 ");
 				}
 				
 			}
 			//we are at the end of the line, start a new one
-			System.out.printf("%n");
+			System.out.printf("|%n");
 		}
+		System.out.printf("--");
+		for (int x = 0; x <= x_size; x++) {
+			System.out.printf("--");
+		}
+		System.out.printf("-%n");
 	}
 }
diff --git a/src/praktikum4/table3.java b/src/praktikum4/table3.java
new file mode 100644
index 0000000..2f9655e
--- /dev/null
+++ b/src/praktikum4/table3.java
@@ -0,0 +1,24 @@
+package praktikum4;
+
+public class table3 {
+
+	public static void main(String[] args) {
+		int x_size = 9;
+		int y_size = x_size;  // table size in y direction
+		
+		// Create the table
+		System.out.printf("%n");
+		for (int x = 0; x <= x_size; x++) {
+			for (int y = 0; y <= y_size; y++) {
+				if (x+y > 9) {
+					System.out.printf("%d ", y+x-10);
+				} else {
+					System.out.printf("%d ", y+x);
+				}
+				
+			}
+			//we are at the end of the line, start a new one
+			System.out.printf("%n");
+		}
+	}
+}