diff --git a/Week3/week3.c b/Week3/week3.c
index 8df14a6..fa62366 100644
--- a/Week3/week3.c
+++ b/Week3/week3.c
@@ -90,3 +90,20 @@ char* addBinary(char *a, char *b) {
 	return &outString[l_x-i];
 }
 
+int minBitFlips(int start, int goal) {
+	// Use XOR operation to get the correct mask
+	uint32_t mask = start ^ goal;
+
+	// Number of flips
+	uint8_t flips = 0;
+
+	// Tally all of the 1's
+	while (mask > 0) {
+		flips += (mask&1);
+		mask >>= 1;
+	}
+
+	// Return value.
+	return flips;
+}
+