diff --git a/Cargo.lock b/Cargo.lock
index 0a7180b..4a77ceb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,11 +2,18 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "autocfg"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+
 [[package]]
 name = "ballot-counter"
 version = "0.1.0"
 dependencies = [
  "itertools",
+ "num",
  "quick-csv",
 ]
 
@@ -25,6 +32,79 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "num"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "35bd024e8b2ff75562e5f34e7f4905839deb4b22955ef5e73d2fea1b9813cb23"
+dependencies = [
+ "num-bigint",
+ "num-complex",
+ "num-integer",
+ "num-iter",
+ "num-rational",
+ "num-traits",
+]
+
+[[package]]
+name = "num-bigint"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a5e44f723f1133c9deac646763579fdb3ac745e418f2a7af9cd0c431da1f20b9"
+dependencies = [
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-complex"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73f88a1307638156682bada9d7604135552957b7818057dcef22705b4d509495"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-integer"
+version = "0.1.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
+name = "num-iter"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-rational"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f83d14da390562dca69fc84082e73e548e1ad308d24accdedd2720017cb37824"
+dependencies = [
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "quick-csv"
 version = "0.1.6"
diff --git a/Cargo.toml b/Cargo.toml
index 1b6162a..0d5070b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,4 +5,5 @@ edition = "2024"
 
 [dependencies]
 itertools = "0.14.0"
+num = "0.4.3"
 quick-csv = "0.1.6"
diff --git a/src/ballot.rs b/src/ballot.rs
index dd20eda..7e15082 100644
--- a/src/ballot.rs
+++ b/src/ballot.rs
@@ -71,10 +71,7 @@ impl Ballot {
 				let mut votes = Vec::<usize>::new();
 				
 				for party_id in self.votes {
-					let start = votes.len();
 					votes.extend(header.parties[party_id].member_ids.iter().copied());
-					let votes_end = &mut votes[start..];
-					votes_end.rotate_left(self.paper_id % votes_end.len());
 				}
 
 				Ballot {
diff --git a/src/counter.rs b/src/counter.rs
index a9c6cf5..458f5ff 100644
--- a/src/counter.rs
+++ b/src/counter.rs
@@ -22,8 +22,8 @@ impl Counter {
 		})
 	}
 
-	pub fn count_primaries(&self, ty: BallotType, running: &[bool]) -> Vec<u32> {
-		let mut scores = vec![0; running.len()];
+	pub fn count_primaries<T>(&self, ty: BallotType, running: &[bool]) -> Vec<T> where T: num::Num + Copy + std::ops::AddAssign {
+		let mut scores = vec![T::zero(); running.len()];
 
 		for ballot in self.ballots.iter() {
 			if ballot.ty != ty {
@@ -33,7 +33,7 @@ impl Counter {
 				if !running[id] {
 					continue;
 				}
-				scores[id] += 1;
+				scores[id] += T::one();
 				break;
 			}
 		}