diff --git a/src/addition.c b/src/addition.c
index d165ae4..d56f705 100644
--- a/src/addition.c
+++ b/src/addition.c
@@ -7,19 +7,19 @@ void full_adder (unsigned int* sum, unsigned int* nextcarry, unsigned int number
     nextcarry[0] = ((number1 % 2) & (number2 % 2)) | ((number1 % 2) & (carry % 2)) | ((number2 % 2) & (carry % 2));
 }
 
-unsigned int addition(unsigned int a, unsigned int b) {
-    unsigned int erg = 0;
-    unsigned int s[1] = {0};
-    unsigned int nc[1] = {0};
+unsigned int addition(unsigned int number1, unsigned int number2) {
+    unsigned int result = 0;
+    unsigned int sum[1] = {0};
+    unsigned int nextcarry[1] = {0};
 
     for (int i = 0; i < 2; i++)
     {
-        full_adder(s, nc, a, b, nc[0]);
-        erg ^= (s[0] << i);
+        full_adder(sum, nextcarry, number1, number2, nextcarry[0]);
+        result ^= (sum[0] << i);
 
-        a >>= 1;
-        b >>= 1;
+        number1 >>= 1;
+        number2 >>= 1;
     }
 
-    return erg;
+    return result;
 }
\ No newline at end of file