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             <a href="Day-18" class="day">Day 18: Mastering Nested Loops in Python</a>
             <a href="Day-19" class="day">Day 19: Fibonacci Sequence with Recursion</a>
             <a href="Day-20" class="day">Day 20: Exploring Nested Functions in Python</a>
-            <a href="Day-21" class="day">Day 21: Coming Soon</a>
-            <a href="Day-22" class="day">Day 22: Coming Soon</a>
-            <a href="Day-23" class="day">Day 23: Coming Soon</a>
+            <a href="Day-21" class="day">Day 21: Exploring String and Integer Operations in Python</a>
+            <a href="Day-22" class="day">Day 22: Exploring Dictionary Operations</a>
+            <a href="Day-23" class="day">Day 23: Demonstrating List Operations</a>
             <a href="Day-24" class="day">Day 24: Coming Soon</a>
             <a href="Day-25" class="day">Day 25: Coming Soon</a>
             <a href="Day-26" class="day">Day 26: Coming Soon</a>