program answer
  implicit none

  integer :: A,B,C,i,a0,b0,c0

  read(*,*) A,B,C
  a0=A
  b0=B
  c0=c
  i =0
  if (A==B.and.A==C.and. mod(A,2)==0) then
     i = -1
  else
     do while(mod(A,2)==0 .and. mod(B,2)==0 .and. mod(C,2)==0) 
     a0=b0/2+c0/2
     b0=A/2+c0/2
     c0=A/2+B/2
     a = a0
     b = b0
     c = c0
     
     i = i + 1
     end do
  end if
  write(*,*) i

  stop
 end program answer

; ModuleID = 'FIRModule'
source_filename = "FIRModule"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"

@_QQcl.15ea4d73e3ac053e328b3b97f07810e5 = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_7306/source.f\00"
@_QQEnvironmentDefaults = local_unnamed_addr constant ptr null

; Function Attrs: noreturn
define void @_QQmain() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = tail call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.15ea4d73e3ac053e328b3b97f07810e5, i32 6)
  %5 = call i1 @_FortranAioInputInteger(ptr %4, ptr nonnull %1, i32 4)
  %6 = call i1 @_FortranAioInputInteger(ptr %4, ptr nonnull %2, i32 4)
  %7 = call i1 @_FortranAioInputInteger(ptr %4, ptr nonnull %3, i32 4)
  %8 = call i32 @_FortranAioEndIoStatement(ptr %4)
  %9 = load i32, ptr %2, align 4, !tbaa !3
  %10 = load i32, ptr %3, align 4, !tbaa !3
  %11 = load i32, ptr %1, align 4, !tbaa !3
  %12 = icmp eq i32 %11, %9
  %13 = icmp eq i32 %11, %10
  %14 = and i1 %12, %13
  %15 = and i32 %11, 1
  %16 = icmp eq i32 %15, 0
  %17 = and i1 %14, %16
  br i1 %17, label %.loopexit, label %.preheader

.preheader:                                       ; preds = %0
  %18 = or i32 %11, %10
  %19 = or i32 %18, %9
  %20 = and i32 %19, 1
  %21 = icmp eq i32 %20, 0
  br i1 %21, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.014 = phi i32 [ %29, %.lr.ph ], [ 0, %.preheader ]
  %.0813 = phi i32 [ %28, %.lr.ph ], [ %10, %.preheader ]
  %.0912 = phi i32 [ %27, %.lr.ph ], [ %9, %.preheader ]
  %22 = phi i32 [ %25, %.lr.ph ], [ %11, %.preheader ]
  %23 = sdiv i32 %.0912, 2
  %24 = sdiv i32 %.0813, 2
  %25 = add nsw i32 %24, %23
  %26 = sdiv i32 %22, 2
  %27 = add nsw i32 %26, %24
  %28 = add nsw i32 %23, %26
  %29 = add i32 %.014, 1
  %30 = or i32 %27, %25
  %31 = or i32 %30, %28
  %32 = and i32 %31, 1
  %33 = icmp eq i32 %32, 0
  br i1 %33, label %.lr.ph, label %..loopexit_crit_edge

..loopexit_crit_edge:                             ; preds = %.lr.ph
  store i32 %25, ptr %1, align 4, !tbaa !3
  store i32 %27, ptr %2, align 4, !tbaa !3
  store i32 %28, ptr %3, align 4, !tbaa !3
  br label %.loopexit

.loopexit:                                        ; preds = %.preheader, %..loopexit_crit_edge, %0
  %.1 = phi i32 [ -1, %0 ], [ %29, %..loopexit_crit_edge ], [ 0, %.preheader ]
  %34 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.15ea4d73e3ac053e328b3b97f07810e5, i32 25)
  %35 = call i1 @_FortranAioOutputInteger32(ptr %34, i32 %.1)
  %36 = call i32 @_FortranAioEndIoStatement(ptr %34)
  %37 = call {} @_FortranAStopStatement(i32 0, i1 false, i1 false)
  unreachable
}

declare ptr @_FortranAioBeginExternalListInput(i32, ptr, i32) local_unnamed_addr

declare i1 @_FortranAioInputInteger(ptr, ptr, i32) local_unnamed_addr

declare i32 @_FortranAioEndIoStatement(ptr) local_unnamed_addr

declare ptr @_FortranAioBeginExternalListOutput(i32, ptr, i32) local_unnamed_addr

declare i1 @_FortranAioOutputInteger32(ptr, i32) local_unnamed_addr

declare {} @_FortranAStopStatement(i32, i1, i1) local_unnamed_addr

attributes #0 = { noreturn }

!llvm.module.flags = !{!0, !1, !2}

!0 = !{i32 2, !"Debug Info Version", i32 3}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{!4, !4, i64 0}
!4 = !{!"any data access", !5, i64 0}
!5 = !{!"any access", !6, i64 0}
!6 = !{!"Flang Type TBAA Root"}
