diff --git a/main.c b/main.c
index 7f0502e..4c120a9 100644
--- a/main.c
+++ b/main.c
@@ -2,18 +2,18 @@
 
 int main() {
   while (1) {
-    char input[99];
-    int currentNumber = 0;
-    int result = 0;
+    char input[99]; // 22+5+2+1
+    char currentNumber = 0; // 2, 22, 5, 2, 1
+    int result = 0; // 10
 
     scanf("%s", input);
 
     for (int i = 0; input[i] != '\0'; i++) {
-      if (input[i] == '+') {
+      if (input[i] == 43) {
         result += currentNumber;
         currentNumber = 0;
       } else {
-        currentNumber = currentNumber * 10 + (input[i] - '0');
+        currentNumber = currentNumber * 10 + (input[i] - 48);
       }
     }