diff --git a/1.3 b/1.3
new file mode 100644
index 0000000..be6431b
--- /dev/null
+++ b/1.3
@@ -0,0 +1,18 @@
+void six () {
+	int n;
+	scanf("%d", &n);
+	int res = 0;
+	char s[100], cur[100];
+	int i;
+	for (i = 0; i < 2*n+2; ++i) {
+		
+		gets(s);
+		int size = myStrlen(s);
+		int j;
+		for (j = 0; j < size; ++j){
+			cur[size-1-j] ^= s[size-1-j];
+		}
+	}
+	puts(cur);
+	return;
+}