diff --git a/1.cpp b/1.cpp
new file mode 100644
index 0000000..b1b5811
--- /dev/null
+++ b/1.cpp
@@ -0,0 +1,30 @@
+#include<stdio.h>
+auto main() -> int 
+{
+	int board[9][9] = { {5,3,4,6,7,8,9,1,2},
+	{6,7,2,1,9,5,3,4,8},
+	{1,9,8,3,4,2,5,6,7},
+	{8,5,9,7,6,1,4,2,3},
+	{4,2,6,8,5,3,7,9,1},
+	{7,1,3,9,2,4,8,5,6},
+	{9,6,1,5,3,7,2,8,4},
+	{2,8,7,4,1,9,6,3,5},
+	{3,4,5,2,8,6,1,7,9} };
+	void format(int board[9][9]);
+	format(board);
+	return 0;
+}
+void format(int board[9][9]) { //°´3*3·Ö¿é´òÓ¡Êý¶À¾ØÕó
+	for (int i = 0; i < 9; i++) {
+		for (int j = 0; j < 9; j++) {
+			printf("%d ", board[i][j]);
+			if ((j + 1) % 3 == 0 && j != 8) {
+				printf("| ");
+			}
+		}
+		if ((i + 1) % 3 == 0 && i != 8) {
+			printf("\n---------------------\n");
+		}
+		else {printf("\n"); }
+	}
+}
\ No newline at end of file