diff --git a/백준/1715.py b/백준/1715.py
new file mode 100644
index 0000000..78db907
--- /dev/null
+++ b/백준/1715.py
@@ -0,0 +1,32 @@
+import sys
+import heapq
+
+sys.setrecursionlimit(10**6)
+
+input = sys.stdin.readline
+
+min_heap = []
+
+N=int(input().rstrip())
+
+for i in range(N):
+    heapq.heappush(min_heap, int(input().rstrip()))
+
+result = 0
+
+first_value = heapq.heappop(min_heap)
+result += first_value
+while min_heap:
+    second_value = heapq.heappop(min_heap)
+    result+=second_value
+    if min_heap:
+        heapq.heappush(min_heap, first_value + second_value)
+        first_value=heapq.heappop(min_heap)
+        result += first_value
+    else:
+        break
+
+if(N==1):
+    result = 0
+
+print(result)
\ No newline at end of file
diff --git a/백준/1722.py b/백준/1722.py
new file mode 100644
index 0000000..5fd12c8
--- /dev/null
+++ b/백준/1722.py
@@ -0,0 +1,22 @@
+import sys
+from itertools import permutations
+import math
+
+N = int(input())
+problem = list(map(int, input().split())) #problem이 주어진 문제
+
+a=[]
+for i in range(1, N+1):
+    a.append(i) # a는 순서대로 순열 있는거 
+
+if problem[0] == 1:
+    print(*arr[problem[1]-1])
+elif problem[0] == 2:
+    for i in range(1, N+1):
+        new_arr.append(problem[i]) # new_arr가 배열만 저장되어 있는거
+    temp = 1
+    for i in arr:
+        if(list(i) == new_arr):
+            print(temp)
+            break
+        temp += 1
\ No newline at end of file
diff --git a/백준/1744.py b/백준/1744.py
new file mode 100644
index 0000000..0fa933a
--- /dev/null
+++ b/백준/1744.py
@@ -0,0 +1,57 @@
+import heapq
+import sys
+from collections import deque
+
+input = sys.stdin.readline
+
+maxheap=[]
+minheap=[]
+result = 0
+count_0 = 0
+count_1 = 0
+N = int(input().rstrip())
+
+def plusnum(num):
+    maxheap.append(num)
+
+def minusnum(num):
+    minheap.append(num)
+
+for i in range(N):
+    num = int(input().rstrip())
+    if(num==0):
+        count_0 += 1
+    elif(num==1):
+        count_1 += 1
+    elif(num>0):
+        plusnum(num)
+    else:
+        minusnum(num)
+
+maxheap.sort()
+minheap.sort()
+
+while maxheap:
+    first_value = maxheap.pop()
+    if maxheap:
+        second_value = maxheap.pop()
+        result += (first_value * second_value)
+    else:
+        result += first_value
+
+if (len(minheap)%2==1):
+    if count_0 and minheap:
+        minheap.pop()
+    else:
+        result+=minheap.pop()
+
+while minheap:
+    first_value = minheap.pop()
+    second_value = minheap.pop()
+    result += (first_value * second_value)
+
+result+=count_1
+
+print(result)
+
+
diff --git a/백준/1747.py b/백준/1747.py
new file mode 100644
index 0000000..a1b35d8
--- /dev/null
+++ b/백준/1747.py
@@ -0,0 +1,29 @@
+import sys
+import math
+
+input = sys.stdin.readline
+
+def pellindrom(num):
+    num = str(num)
+    num_len = len(num) // 2
+    for i in range(num_len):
+        if(num[i]!=num[-(i+1)]):
+            return False
+    return True
+
+def isPrime(num):
+    if (num==1):
+        return False
+    for i in range(2, (int(math.sqrt(num))+1)):
+        if num%i == 0:
+            return False
+    return True
+
+N = int(input())
+
+while True:
+    if (isPrime(N) and pellindrom(N)):
+        print(N)
+        break
+    else:
+        N+=1
diff --git a/백준/1753.py b/백준/1753.py
new file mode 100644
index 0000000..7853ad4
--- /dev/null
+++ b/백준/1753.py
@@ -0,0 +1,34 @@
+import sys
+input = sys.stdin.readline
+from queue import PriorityQueue
+
+V, E = map(int, input().split())
+K = int(input())
+distance = [sys.maxsize] * (V+1)
+visited = [False] * (V+1)
+myList = [[] for _ in range(V+1)]
+q = PriorityQueue()
+
+for _ in range(E):
+    u, v, w = map(int, input().split())
+    myList[u].append((v, w))
+
+q.put((0, K))
+distance[K] = 0
+
+while q.qsize() > 0 :
+    current = q.get()
+    c_v = current[1]
+    if visited[c_v]:
+        continue
+    visited[c_v] = True
+    for next, value in myList[c_v]:
+        if distance[next] > distance[c_v] + value:
+            distance[next] = distance[c_v] + value
+            q.put((distance[next], next))
+
+for i in range(1, V+1):
+    if visited[i]:
+        print(distance[i])
+    else:
+        print("INF")
\ No newline at end of file