diff --git a/7.x/PN7.3 Riempimento/Riempimento.java b/7.x/PN7.3 Riempimento/Riempimento.java
new file mode 100644
index 0000000..e66d619
--- /dev/null
+++ b/7.x/PN7.3 Riempimento/Riempimento.java	
@@ -0,0 +1,35 @@
+
+public class Riempimento {
+	public static void main(String[] args) {
+		boolean[] posti = {false, false, false, false, false, false, false, false, false, false};
+		int occupati = 0;
+
+		while (occupati < posti.length) {
+			int centro = 0;
+			int maxSequence = 0;
+			int actSequence = 0;
+			for (int i = 0; i < posti.length; i++) {
+				if (!posti[i]) {
+					actSequence++;
+					if (actSequence > maxSequence) {
+						maxSequence = actSequence;
+						centro = i - actSequence / 2;
+					}
+				} else {
+					actSequence = 0;
+				}
+			}
+			posti[centro] = true;
+			occupati++;
+
+			for(int i = 0; i < posti.length; i++) {
+				if(posti[i]) System.out.print("X");
+				else System.out.print("_");
+			}
+
+			System.out.println();
+		}
+
+		
+	}	
+}
\ No newline at end of file