diff --git a/Main.java b/Main.java
index faeb546..62a28a9 100644
--- a/Main.java
+++ b/Main.java
@@ -53,4 +53,38 @@ public class Main {
 	public static void showPoly(LinkedList<Integer> poly) {
 		System.out.println(poly.toString());
 	}
+
+
+	public static int multiplier(int number, int expect, int mod) {
+		
+		/*
+		if(nwd(number,mod) != 1 || nwd(number,mod) != number) {
+			System.out.println("NIE DA SIE");
+			return 0;
+		}*/
+
+		for(int i=1;i<mod;i++) {
+			if(((number*i) % mod) == expect) {
+				return i;
+			}
+		}
+		return 0;
+	}
+
+
+	public static LinkedList<Integer> modPolynomial(int mod, LinkedList<Integer> polynomial){
+		
+		LinkedList<Integer> result = new LinkedList<Integer>();
+		
+		while(!polynomial.isEmpty()) {
+			
+			if(polynomial.peek() < 0) {
+				
+				result.add(mod + polynomial.poll());
+			}
+			else result.add(polynomial.poll() % mod);
+		}
+		return result;
+	}
+	
 }
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