.assembly 'mutual' { }
.assembly extern 'mscorlib' {
.ver 1:0:5000:0
.publickeytoken = ( b7 7a 5c 56 19 34 e0 89 )
}
.class 'A'
	extends [mscorlib]System.Object
{
.field static private class 'B' 'x'
.field private int32 'y'
.method hidebysig specialname rtspecialname public void .ctor() {
ldarg.0
call instance void [mscorlib]System.Object::.ctor()
ret
.maxstack 1
} // end of constructor A.A
} // end of class A
.class public 'B'
	extends [mscorlib]System.Object
{
.field static private class 'A' 'x'
.method hidebysig static public void 'Main'() {
.entrypoint
ret
.maxstack 0
} // end of method B.Main
.method hidebysig specialname rtspecialname public void .ctor() {
ldarg.0
call instance void [mscorlib]System.Object::.ctor()
ret
.maxstack 1
} // end of constructor B.B
} // end of class B