diff --git a/nx01-x4o-fc18/src/main/java/org/x4o/fc18/FourCornerUnicodeDisplay.java b/nx01-x4o-fc18/src/main/java/org/x4o/fc18/FourCornerUnicodeDisplay.java
index e65e0b7..435e04f 100644
--- a/nx01-x4o-fc18/src/main/java/org/x4o/fc18/FourCornerUnicodeDisplay.java
+++ b/nx01-x4o-fc18/src/main/java/org/x4o/fc18/FourCornerUnicodeDisplay.java
@@ -222,17 +222,9 @@ public class FourCornerUnicodeDisplay {
 		@Override
 		public void strobeNCR1632(BigInteger denominator, BigInteger numerator) {
 			List<Integer> math = new ArrayList<>();
-			FourCornerUnicodeMapper.DICTIONARY.toScriptSuper(numerator).forEach(v -> {
-				for (int chr : v.cakePointSequence()) {
-					math.add(chr);
-				}
-			});
+			FourCornerUnicodeMapper.DICTIONARY.toScriptSuper(numerator).forEach(v -> math.add(v.cakePointDotIndex()));
 			math.add(FCDotCDC1604DashP6.NY02_BAR_V_RIGHT.ordinal());
-			FourCornerUnicodeMapper.DICTIONARY.toScriptSub(denominator).forEach(v -> {
-				for (int chr : v.cakePointSequence()) {
-					math.add(chr);
-				}
-			});
+			FourCornerUnicodeMapper.DICTIONARY.toScriptSub(denominator).forEach(v -> math.add(v.cakePointDotIndex()));
 			renderFromInt18(math, output);
 		}
 		
diff --git a/nx01-x4o-fc18/src/main/java/org/x4o/fc18/FourCornerUnicodeMapper.java b/nx01-x4o-fc18/src/main/java/org/x4o/fc18/FourCornerUnicodeMapper.java
index 5e4265a..8f9a0cc 100644
--- a/nx01-x4o-fc18/src/main/java/org/x4o/fc18/FourCornerUnicodeMapper.java
+++ b/nx01-x4o-fc18/src/main/java/org/x4o/fc18/FourCornerUnicodeMapper.java
@@ -163,24 +163,24 @@ public enum FourCornerUnicodeMapper {
 		return result;
 	}
 	
-	public List<FourCornerX18CakePointSequence> toScriptSuper(int value) {
+	public List<FourCornerX18CakePointDotIndex> toScriptSuper(int value) {
 		return toScript(Integer.toString(value), 0);
 	}
 	
-	public List<FourCornerX18CakePointSequence> toScriptSub(int value) {
+	public List<FourCornerX18CakePointDotIndex> toScriptSub(int value) {
 		return toScript(Integer.toString(value), 10);
 	}
 	
-	public List<FourCornerX18CakePointSequence> toScriptSuper(BigInteger value) {
+	public List<FourCornerX18CakePointDotIndex> toScriptSuper(BigInteger value) {
 		return toScript(value.toString(10), 0);
 	}
 	
-	public List<FourCornerX18CakePointSequence> toScriptSub(BigInteger value) {
+	public List<FourCornerX18CakePointDotIndex> toScriptSub(BigInteger value) {
 		return toScript(value.toString(10), 10);
 	}
 	
-	private List<FourCornerX18CakePointSequence> toScript(String value, int off) {
-		List<FourCornerX18CakePointSequence> result = new ArrayList<>();
+	private List<FourCornerX18CakePointDotIndex> toScript(String value, int off) {
+		List<FourCornerX18CakePointDotIndex> result = new ArrayList<>();
 		PrimitiveIterator.OfInt i = value.codePoints().iterator();
 		while (i.hasNext()) {
 			int chr = i.nextInt();