diff --git a/.gitignore b/.gitignore
index 3a2a3c0..197d31e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -497,3 +497,4 @@ fabric.properties
 # Android studio 3.1+ serialized cache file
 .idea/caches/build_file_checksums.ser
 
+*.lnk
\ No newline at end of file
diff --git a/1.1.asm b/1.1.asm
new file mode 100644
index 0000000..9079c5c
--- /dev/null
+++ b/1.1.asm
@@ -0,0 +1,40 @@
+.686p
+.model flat
+include kernel32.inc
+includelib kernel32.lib
+includelib msvcrt.lib
+extern _printf:proc
+extern _scanf:proc
+extern _strlen:proc
+.data
+strScanfFmt db "%d%d%d",0
+strPrintfFmt db "%d",0
+.code
+_main proc
+var1=-4
+var2=-8
+var3=-12
+mov ebp, esp
+sub esp, 12
+lea edx, dword ptr [ebp+var3]
+push edx
+lea edx, dword ptr [ebp+var2]
+push edx
+lea edx, dword ptr [ebp+var1]
+push edx
+push offset strScanfFmt
+call _scanf
+add esp, 16
+imul eax, dword ptr var1[ebp], 5
+mov ecx, dword ptr var2[ebp]
+sub ecx, dword ptr var3[ebp]
+xor edx, edx
+div ecx
+push eax
+push offset strPrintfFmt
+call _printf
+add esp, 8
+push 0
+call ExitProcess
+_main endp
+end _main
\ No newline at end of file
diff --git a/1.2.asm b/1.2.asm
new file mode 100644
index 0000000..4ba5830
--- /dev/null
+++ b/1.2.asm
@@ -0,0 +1,44 @@
+.686p
+.model flat
+include kernel32.inc
+includelib kernel32.lib
+includelib msvcrt.lib
+extern _printf:proc
+extern _scanf:proc
+extern _strlen:proc
+.data
+strScanfFmt db "%d%d%d",0
+strPrintfFmt db "%d",0
+.code
+_main proc
+var1=-4
+var2=-8
+var3=-12
+mov ebp, esp
+sub esp, 12
+lea edx, dword ptr [ebp+var3]
+push edx
+lea edx, dword ptr [ebp+var2]
+push edx
+lea edx, dword ptr [ebp+var1]
+push edx
+push offset strScanfFmt
+call _scanf
+add esp, 16
+imul ecx, dword ptr var1[ebp], -5
+mov eax, dword ptr var2[ebp]
+neg eax
+cdq
+idiv dword ptr var3[ebp]
+mov ebx, edx
+mov eax, ecx
+cdq
+idiv ebx
+push eax
+push offset strPrintfFmt
+call _printf
+add esp, 8
+push 0
+call ExitProcess
+_main endp
+end _main
\ No newline at end of file
diff --git a/1.3.asm b/1.3.asm
new file mode 100644
index 0000000..adc8c53
--- /dev/null
+++ b/1.3.asm
@@ -0,0 +1,41 @@
+.686p
+.model flat
+include kernel32.inc
+includelib kernel32.lib
+includelib msvcrt.lib
+extern _printf:proc
+extern _scanf:proc
+extern _strlen:proc
+.data
+strScanfFmt db "%d",0
+strPrintfFmt db "%d",0
+.code
+sgn proc
+xor eax, eax
+mov ebx, -1
+mov ecx, 1
+cmp dword ptr [esp+4], 0
+cmovl eax, ebx
+cmovg eax, ecx
+ret
+sgn endp
+_main proc
+var1=-4
+mov ebp, esp
+sub esp, 4
+lea edx, dword ptr var1[ebp]
+push edx
+push offset strScanfFmt
+call _scanf
+add esp, 8
+push dword ptr var1[ebp]
+call sgn
+add esp, 4
+push eax
+push offset strPrintfFmt
+call _printf
+add esp, 8
+push 0
+call ExitProcess
+_main endp
+end _main
\ No newline at end of file
diff --git a/1.4.asm b/1.4.asm
new file mode 100644
index 0000000..241434b
--- /dev/null
+++ b/1.4.asm
@@ -0,0 +1,62 @@
+.686p
+.model flat
+include kernel32.inc
+includelib kernel32.lib
+includelib msvcrt.lib
+extern _printf:proc
+extern _scanf:proc
+extern _strlen:proc
+_BSS SEGMENT
+a dd 100000 dup(?)
+_BSS ENDS
+.data
+strScanfFmt db "%d",0
+strPrintfFmt db "%lld",0
+.code
+_main proc
+n=-4
+sub esp, 4
+lea edx, dword ptr n[ebp]
+push edx
+push offset strScanfFmt
+call _scanf
+add esp, 8
+mov ecx, dword ptr n[ebp]
+xor ebx, ebx
+loop1@start:
+cmp ebx, ecx
+je loop1@end
+push ecx
+lea edx, dword ptr a[ebx*4]
+push edx
+push offset strScanfFmt
+call _scanf
+add esp, 8
+pop ecx
+inc ebx
+jmp loop1@start
+loop1@end:
+xor esi, esi
+xor edi, edi
+xor ebx, ebx
+loop2@start:
+cmp ebx, ecx
+je loop2@end
+mov eax, dword ptr a[ebx*4]
+cdq
+add eax, esi
+adc edx, edi
+mov esi, eax
+mov edi, edx
+inc ebx
+jmp loop2@start
+loop2@end:
+push edi
+push esi
+push offset strPrintfFmt
+call _printf
+add esp, 12
+push 0
+call ExitProcess
+_main endp
+end _main
\ No newline at end of file