diff --git a/code_study/Baekjoon/c/11053.c b/code_study/Baekjoon/c/11053.c
new file mode 100644
index 0000000..c747bd3
--- /dev/null
+++ b/code_study/Baekjoon/c/11053.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+
+#define MAX 1000
+
+int A[MAX], dp[MAX];
+int N, ans;
+
+int max(int a, int b) {
+    return a > b ? a : b;
+}
+
+int main() {
+    scanf("%d", &N);
+    for(int i=0; i<N; i++) {
+        scanf("%d",&A[i]);
+        dp[i] = 1;
+    }
+
+    for(int i=1; i<N; i++) {
+        for(int j=0; j<i; j++) {
+            if(A[i] > A[j]) dp[i] = max(dp[i], dp[j] + 1);
+        }
+    }
+
+    for(int i=0; i<N; i++) ans = max(dp[i], ans);
+
+    printf("%d\n", ans);
+
+    return 0;
+}
\ No newline at end of file
diff --git a/code_study/Baekjoon/python/16199.py b/code_study/Baekjoon/python/16199.py
new file mode 100644
index 0000000..c28a09d
--- /dev/null
+++ b/code_study/Baekjoon/python/16199.py
@@ -0,0 +1,8 @@
+y1, m1, d1 = map(int, input().split())
+y2, m2, d2 = map(int, input().split())
+
+age1 = y2 - y1 if m1 < m2 or (m1 == m2 and d1 <= d2) else y2-y1-1
+age2 = y2-y1+1
+age3 = y2-y1
+
+print(age1, age2, age3, sep="\n")
\ No newline at end of file