diff --git a/0318/0.c b/0318/0.c
new file mode 100644
index 0000000..31aafd9
--- /dev/null
+++ b/0318/0.c
@@ -0,0 +1,23 @@
+#include <stdio.h>
+#define putbool(x) (printf("%s", (x) ? "TRUE" : "FALSE"))
+
+int main() {
+    int n;
+    scanf("%d", &n);
+    {
+        int i = 1;
+        while (1) {
+            int square = i * i;
+            if (square == n) {
+                putbool(1);
+                return 0;
+            }
+            if (square > n) {
+                putbool(0);
+                return 0;
+            }
+            i++;
+        }
+    }
+    return 0;
+}
\ No newline at end of file