diff --git a/0422-t/1.c b/0422-t/1.c
new file mode 100644
index 0000000..f61340d
--- /dev/null
+++ b/0422-t/1.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+#define for_i(i, range, inner)                                                 \
+    {                                                                          \
+        int i;                                                                 \
+        for (i = 0; i < range; i++)                                            \
+            inner;                                                             \
+    }
+
+int main() {
+    int a[4][4], *p = (int *)a, n, sum=0;
+    scanf("%d", &n);
+    for_i(i, 16, p[i] = n + i);
+    for_i(i, 4, sum+=a[0][i]);
+    for_i(i, 4, sum+=a[3][i]);
+    for_i(i, 4, sum+=a[i][0]);
+    for_i(i, 4, sum+=a[i][3]);
+    sum -= a[0][0] + a[3][0] + a[0][3] + a[3][3];
+    printf("%d\n", sum);
+    return 0;
+}
\ No newline at end of file