diff --git a/dz9.3 b/dz9.3
new file mode 100644
index 0000000..9b54aa4
--- /dev/null
+++ b/dz9.3
@@ -0,0 +1,62 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#define N 1000
+
+bool Brackets(char *s)
+{
+  int r1 = 0; int  r2 = 0; int r3 = 0 ;
+  for(size_t i = 0; i < strlen(s); i++)
+  {
+    if (r1 < 0 || r2 < 0 || r3 < 0)
+    {
+      return false;
+    }
+    else{
+      if(s[i] == '(')
+      {
+        r1++;
+      }
+      if(s[i] == ')')
+      {
+        r1--;
+      }
+      if(s[i] == '[')
+      {
+        r2++;
+      }
+      if(s[i] == ']')
+      {
+        r2--;
+      }
+      if(s[i] == '{')
+      {
+        r3++;
+      }
+      if(s[i] == '}')
+      {
+        r3--;
+      }
+    }
+  }
+    if (r1 != 0 || r2 != 0 || r3 != 0)
+    {
+      return false;
+    }
+    return true;
+}
+
+int main()
+{
+  char s[N];
+
+  printf("Input string : ");
+  fgets(s, N, stdin);
+
+  if(Brackets(s) == 0){
+    printf("Incorrectly");
+  }
+  else{
+    printf("Correctly");
+  }
+}