diff --git a/JinHaLim/Easy/solution_1688.js b/JinHaLim/Easy/solution_1688.js
new file mode 100644
index 0000000..f94f6d9
--- /dev/null
+++ b/JinHaLim/Easy/solution_1688.js
@@ -0,0 +1,19 @@
+/**
+ * @param {number} n
+ * @return {number}
+ */
+var numberOfMatches = function(n) {
+    let sum = 0;
+    while (n > 1) {
+        if (n%2 === 0) {
+            n = n/2;
+            sum += n;
+        }else{
+            n = (n-1)/2 ;
+            sum += n;
+            n += 1;
+        }
+    }
+    return sum;
+};
+console.log(numberOfMatches(5))
\ No newline at end of file
diff --git a/JinHaLim/Easy/solution_1832.js b/JinHaLim/Easy/solution_1832.js
new file mode 100644
index 0000000..646ce3f
--- /dev/null
+++ b/JinHaLim/Easy/solution_1832.js
@@ -0,0 +1,16 @@
+/**
+ * @param {string} sentence
+ * @return {boolean}
+ */
+var checkIfPangram = function(sentence) {
+    const alphabet = 'abcdefghijklmnopqrstuvwxyz';
+    for (let i = 0; i < alphabet.length; i++) {
+        if (!sentence.includes(alphabet[i])) {
+            return false;
+        }
+        
+    }
+    return true;
+};
+console.log(checkIfPangram("thequickbrownfoxjumpsoverthelazydog"))
+console.log(checkIfPangram("leetcode"))
\ No newline at end of file
diff --git a/JinHaLim/Easy/solution_1859.js b/JinHaLim/Easy/solution_1859.js
new file mode 100644
index 0000000..a5a3507
--- /dev/null
+++ b/JinHaLim/Easy/solution_1859.js
@@ -0,0 +1,12 @@
+/**
+ * @param {string} s
+ * @return {string}
+ */
+var sortSentence = function(s) {
+    let arr = s.split(' ');
+    return arr.reduce((acc,curr) => {
+        acc[curr[curr.length-1]-1] = curr.slice(0,curr.length-1);
+        return acc;
+    },new Array(arr.length)).join(' ');
+};
+console.log(sortSentence("is2 sentence4 This1 a3"));
\ No newline at end of file