program main
      implicit none
      integer(8) :: a,b,n,x,ans

      read *, a, b, n
      
      if ( n >= b ) then
        x = b-1
        ans = int(a*x/b)
      else
        x = n
        ans = int(a*x/b)
      end if
      print *, ans

end program main

; 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.0516d667f06c7af183376f0d3e9d2f45 = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_1595/source.f\00"
@_QQEnvironmentDefaults = local_unnamed_addr constant ptr null

define void @_QQmain() local_unnamed_addr {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = tail call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.0516d667f06c7af183376f0d3e9d2f45, i32 5)
  %5 = call i1 @_FortranAioInputInteger(ptr %4, ptr nonnull %1, i32 8)
  %6 = call i1 @_FortranAioInputInteger(ptr %4, ptr nonnull %2, i32 8)
  %7 = call i1 @_FortranAioInputInteger(ptr %4, ptr nonnull %3, i32 8)
  %8 = call i32 @_FortranAioEndIoStatement(ptr %4)
  %9 = load i64, ptr %3, align 8, !tbaa !3
  %10 = load i64, ptr %2, align 8, !tbaa !3
  %.not = icmp slt i64 %9, %10
  br i1 %.not, label %15, label %11

11:                                               ; preds = %0
  %12 = add i64 %10, -1
  %13 = load i64, ptr %1, align 8, !tbaa !3
  %14 = mul i64 %13, %12
  br label %18

15:                                               ; preds = %0
  %16 = load i64, ptr %1, align 8, !tbaa !3
  %17 = mul i64 %16, %9
  br label %18

18:                                               ; preds = %11, %15
  %.pn = phi i64 [ %14, %11 ], [ %17, %15 ]
  %.0.in.in = sdiv i64 %.pn, %10
  %.0.in = shl i64 %.0.in.in, 32
  %.0 = ashr exact i64 %.0.in, 32
  %19 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.0516d667f06c7af183376f0d3e9d2f45, i32 14)
  %20 = call i1 @_FortranAioOutputInteger64(ptr %19, i64 %.0)
  %21 = call i32 @_FortranAioEndIoStatement(ptr %19)
  ret void
}

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 @_FortranAioOutputInteger64(ptr, i64) local_unnamed_addr

!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"}
