diff --git a/Baekjoon/c/1001.c b/Baekjoon/c/1001.c
new file mode 100755
index 0000000..3ad9cfc
--- /dev/null
+++ b/Baekjoon/c/1001.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main() {
+	
+	int a, b;
+	
+	scanf("%d %d",&a, &b);
+	printf("%d",a-b);
+	
+	return 0;
+	
+}
\ No newline at end of file
diff --git a/Baekjoon/c/1008.c b/Baekjoon/c/1008.c
new file mode 100755
index 0000000..c2ff465
--- /dev/null
+++ b/Baekjoon/c/1008.c
@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main() {
+	int a, b;
+	scanf("%d %d",&a, &b);
+	printf("%.9f",(double)a/b);
+	return 0;
+	
+}
\ No newline at end of file
diff --git a/Baekjoon/c/10430.c b/Baekjoon/c/10430.c
new file mode 100755
index 0000000..62d5bcb
--- /dev/null
+++ b/Baekjoon/c/10430.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main() {
+	int a, b, c;
+	scanf("%d %d %d",&a, &b, &c);
+	printf("%d %d %d %d",(a+b)%c,((a%c)+(b%c))%c,(a*b)%c,((a%c)*(b%c))%c);
+	return 0;
+}
\ No newline at end of file
diff --git a/Baekjoon/c/10869.c b/Baekjoon/c/10869.c
new file mode 100755
index 0000000..0c93e20
--- /dev/null
+++ b/Baekjoon/c/10869.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main() {
+	int a, b;
+	scanf("%d %d",&a,&b);
+	printf("%d %d %d %d %d",a+b,a-b,a*b,a/b,a%b);
+	return 0;
+}
\ No newline at end of file
diff --git a/Baekjoon/c/10926.c b/Baekjoon/c/10926.c
new file mode 100755
index 0000000..3368ef5
--- /dev/null
+++ b/Baekjoon/c/10926.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main() {
+	char a[50];
+	scanf("%s",a);
+	printf("%s??\!",a);
+	return 0;
+}
\ No newline at end of file
diff --git a/Baekjoon/c/10998.c b/Baekjoon/c/10998.c
new file mode 100755
index 0000000..f96b8b8
--- /dev/null
+++ b/Baekjoon/c/10998.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main() {
+	
+	int a, b;
+	
+	scanf("%d %d",&a, &b);
+	printf("%d",a*b);
+	
+	return 0;
+	
+}
\ No newline at end of file
diff --git a/Baekjoon/c/11382.c b/Baekjoon/c/11382.c
new file mode 100755
index 0000000..9974364
--- /dev/null
+++ b/Baekjoon/c/11382.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main() {
+	long int a, b, c;
+	scanf("%ld %ld %ld",&a, &b, &c);
+	printf("%ld",a+b+c);
+	return 0;
+}
\ No newline at end of file
diff --git a/Baekjoon/c/18108.c b/Baekjoon/c/18108.c
new file mode 100755
index 0000000..7c77703
--- /dev/null
+++ b/Baekjoon/c/18108.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main() {
+	int a;
+	scanf("%d",&a);
+	printf("%d",a-543);
+	return 0;
+}
\ No newline at end of file
diff --git a/Baekjoon/c/2588.c b/Baekjoon/c/2588.c
new file mode 100755
index 0000000..0e2c277
--- /dev/null
+++ b/Baekjoon/c/2588.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main() {
+	int a, b;
+	scanf("%d %d",&a, &b);
+	printf("%d %d %d %d",a*(b%10),a*(((b%100)-(b%10)))/10,a*(b-(b%100))/100,a*b);
+	return 0;
+}
\ No newline at end of file
diff --git a/Baekjoon/python/1001.py b/Baekjoon/python/1001.py
new file mode 100755
index 0000000..d54fb13
--- /dev/null
+++ b/Baekjoon/python/1001.py
@@ -0,0 +1,2 @@
+a, b = map(int, input().split())
+print(a-b)
\ No newline at end of file
diff --git a/Baekjoon/python/1008.py b/Baekjoon/python/1008.py
new file mode 100755
index 0000000..3db7bba
--- /dev/null
+++ b/Baekjoon/python/1008.py
@@ -0,0 +1,2 @@
+a, b = map(int, input().split())
+print(a/b)
\ No newline at end of file
diff --git a/Baekjoon/python/10430.py b/Baekjoon/python/10430.py
new file mode 100755
index 0000000..42f316d
--- /dev/null
+++ b/Baekjoon/python/10430.py
@@ -0,0 +1,2 @@
+a, b, c = map(int,input().split())
+print((a+b)%c,((a%c)+(b%c))%c,(a*b)%c,((a%c)*(b%c))%c)
\ No newline at end of file
diff --git a/Baekjoon/python/10869.py b/Baekjoon/python/10869.py
new file mode 100755
index 0000000..e853fdf
--- /dev/null
+++ b/Baekjoon/python/10869.py
@@ -0,0 +1,2 @@
+a, b = map(int, input().split())
+print(a+b,a-b,a*b,a//b,a%b)
\ No newline at end of file
diff --git a/Baekjoon/python/10926.py b/Baekjoon/python/10926.py
new file mode 100755
index 0000000..c6fc006
--- /dev/null
+++ b/Baekjoon/python/10926.py
@@ -0,0 +1 @@
+print(input()+"??!")
\ No newline at end of file
diff --git a/Baekjoon/python/10998.py b/Baekjoon/python/10998.py
new file mode 100755
index 0000000..930b4d3
--- /dev/null
+++ b/Baekjoon/python/10998.py
@@ -0,0 +1,2 @@
+a, b = map(int, input().split())
+print(a*b)
\ No newline at end of file
diff --git a/Baekjoon/python/11382.py b/Baekjoon/python/11382.py
new file mode 100755
index 0000000..981e392
--- /dev/null
+++ b/Baekjoon/python/11382.py
@@ -0,0 +1 @@
+print(sum(map(int,input().split())))
\ No newline at end of file
diff --git a/Baekjoon/python/18108.py b/Baekjoon/python/18108.py
new file mode 100755
index 0000000..fdd5531
--- /dev/null
+++ b/Baekjoon/python/18108.py
@@ -0,0 +1 @@
+print(int(input())-543)
\ No newline at end of file
diff --git a/Baekjoon/python/2588.py b/Baekjoon/python/2588.py
new file mode 100755
index 0000000..d4edc49
--- /dev/null
+++ b/Baekjoon/python/2588.py
@@ -0,0 +1,2 @@
+a, b = int(input()), input()
+print(*[a*int(i) for i in b][::-1], a*int(b))
\ No newline at end of file