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[babynames_answers] / challenge_9.py

diff --git a/challenge_9.py b/challenge_9.py
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+# 9. Take a prefix as input and print the number of boys and girls with that
+#    prefix. (i.e., "m" would list babies whose names start with "m" and "ma"
+#    would list babies whose names start with "ma", etc).
+
+import ssadata
+
+prefix = input("Input a prefix: ")
+
+boysNamesWithPrefix = 0
+for boysName in ssadata.boys.keys():
+    if boysName.startswith(prefix):
+        boysNamesWithPrefix = boysNamesWithPrefix + 1
+
+print("There are " + str(boysNamesWithPrefix) + " boys names that start with " + prefix + ".")
+
+girlsNamesWithPrefix = 0
+for girlsName in ssadata.girls.keys():
+    if girlsName.startswith(prefix):
+        girlsNamesWithPrefix = girlsNamesWithPrefix + 1
+
+print("There are " + str(girlsNamesWithPrefix) + " girls names that start with " + prefix + ".")