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diff --git a/HW3/multiples.c b/HW3/multiples.c
new file mode 100644
index 0000000..90f5fbe
--- /dev/null
+++ b/HW3/multiples.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+
+int main() {
+   int i[6];
+   int d3 = 0,
+       d7 = 0,
+       d21 = 0;
+   printf("Six integers: ");
+   scanf("%d %d %d %d %d %d", i, i+1, i+2, i+3, i+4, i+5);
+   for (int j = 0; j < 6; j++) {
+      int each = i[j];
+      if (each % 21 == 0) {
+         d3++; d7++; d21++;
+      }
+      else if (each % 3 == 0) {
+         d3++;
+      }
+      else if (each % 7 == 0) {
+         d7++;
+      }
+   }
+   printf("%d divisible by 3,\n%d divisible by 7,\n%d divisible by both.\n", d3, d7, d21);
+   return 0;
+}