diff --git a/alphabetspam/input.txt b/alphabetspam/input.txt
new file mode 100644
index 0000000..85ba69e
--- /dev/null
+++ b/alphabetspam/input.txt
@@ -0,0 +1 @@
+Welcome_NWERC_participants!
\ No newline at end of file
diff --git a/alphabetspam/output.txt b/alphabetspam/output.txt
new file mode 100644
index 0000000..99b905f
--- /dev/null
+++ b/alphabetspam/output.txt
@@ -0,0 +1,5 @@
+Welcome_NWERC_participants!
+0.1
+0.2
+0.3
+0.4
diff --git a/alphabetspam/stub.dsl b/alphabetspam/stub.dsl
new file mode 100644
index 0000000..cb87f43
--- /dev/null
+++ b/alphabetspam/stub.dsl
@@ -0,0 +1,4 @@
+function(float_array, calculateRatios, string processedString)
+string(processedString)
+invoke(float_array, ratios, calculateRatios, processedString)
+print(float_array, ratios, \n)
\ No newline at end of file
diff --git a/alphabetspam/stub.js b/alphabetspam/stub.js
new file mode 100644
index 0000000..21caeec
--- /dev/null
+++ b/alphabetspam/stub.js
@@ -0,0 +1,50 @@
+'use strict';
+
+const fs = require('fs');
+
+process.stdin.resume();
+process.stdin.setEncoding('utf-8');
+
+let inputString = '';
+let currentLine = 0;
+
+process.stdin.on('data', function(inputStdin) {
+    inputString += inputStdin;
+});
+
+process.stdin.on('end', function() {
+    inputString = inputString.split('\n');
+
+    main();
+});
+
+function readLine() {
+    return inputString[currentLine++];
+}
+
+/*
+ * Complete the 'calculateRatios' function below.
+ *
+ * The function is expected to return a FLOAT_ARRAY.
+ * The function accepts STRING processedString as parameter.
+ */
+
+function calculateRatios(processedString) {
+    // Write your code here
+
+    console.log(processedString)
+    let testResult = [0.1, 0.2, 0.3, 0.4]
+    return testResult
+}
+
+function main() {
+    const ws = process.stdout;
+
+    const processedString = readLine();
+
+    const ratios = calculateRatios(processedString);
+
+    ws.write(ratios.join('\n') + '\n');
+
+    ws.end();
+}