diff --git a/solution1.c b/solution1.c
new file mode 100644
index 0000000..941f73f
--- /dev/null
+++ b/solution1.c
@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+int main()
+{
+    int n;
+    scanf("%d", &n);
+    int counts[5] = {1, 1, 1, 1, 1};
+    while (n > 1)
+    {
+        n -= 1;
+        for (int i = 1; i < 5; i++)
+            counts[i] += counts[i - 1];
+    }
+    printf("%d", counts[0] + counts[1] + counts[2] + counts[3] + counts[4]);
+    return 0;
+}