Calculator on CIL

.assembly extern mscorlib{}
.assembly extern System.Runtime
{
  .publickeytoken = (B0 3F 5F 7F 11 D5 0A 3A )
  .ver 5:0:0:0
}
.assembly extern System.Console
{
  .publickeytoken = (B0 3F 5F 7F 11 D5 0A 3A )
  .ver 5:0:0:0
}
.assembly Calculator{}
.module Calculator.exe

.namespace Calculator
{
	.class public auto ansi beforefieldinit Program extends [System.Runtime]System.Object
	{
		.method private hidebysig static void Main(string[] args) cil managed
		{
			.entrypoint
			.maxstack 8
			.locals init(
				[0] int32 firstValue,
				[1] int32 secondValue,
				[2] string character
			)

			ldstr "Введите первое число: "
			call void [System.Runtime]System.Console::Write(string)
			call string [System.Runtime]System.Console::ReadLine()
			call int32 [System.Runtime]System.Int32::Parse(string)
			stloc.0

			ldstr "Введите второе число: "
			call void [System.Runtime]System.Console::Write(string)
			call string [System.Runtime]System.Console::ReadLine()
			call int32 [System.Runtime]System.Int32::Parse(string)
			stloc.1

			ldstr "Введите знак: "
			call void [System.Runtime]System.Console::WriteLine(string)
			call string [System.Runtime]System.Console::ReadLine()
			stloc.2

			ldloc.0
			ldstr "+"
			call bool [System.Runtime]System.String::op_Equality(string, string)
			brfalse.s IL_0008

			IL_0001: ldstr "Result is {0}"
			IL_0002: ldloc.0
			IL_0003: box [System.Runtime]System.Int32
			IL_0004: ldloc.1
			IL_0005: box [System.Runtime]System.Int32
			IL_0006: call string [System.Runtime]System.String::Format(string, object, object)
			IL_0007: call void [System.Runtime]System.Console::WriteLine(string)
			br IL_0010

			IL_0008: ldstr "Undefined character"
			IL_0009: call void [System.Runtime]System.Console::WriteLine(string)
			IL_0010: ret
		}
	}
}