program slimes
    implicit none
    integer :: n, i, cnt = 0
    character(100000) s
    read *, n
    read *, s
    do i = 1, n
        if(s(i:i) .eq. s(i+1:i+1))cycle
        if(s(i:i) .ne. s(i+1:i+1))then
            cnt = cnt + 1
        end if
    end do
    print *, cnt
end program
; 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"

@_QFEcnt = internal unnamed_addr global i32 0
@_QFEs = internal global [100000 x i8] undef
@_QQcl.f17a4769615d2edd5828c767f1d8d082 = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_3120/source.f\00"
@_QQEnvironmentDefaults = local_unnamed_addr constant ptr null

define void @_QQmain() local_unnamed_addr {
  %1 = alloca i32, align 4
  %2 = tail call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.f17a4769615d2edd5828c767f1d8d082, i32 5)
  %3 = call i1 @_FortranAioInputInteger(ptr %2, ptr nonnull %1, i32 4)
  %4 = call i32 @_FortranAioEndIoStatement(ptr %2)
  %5 = call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.f17a4769615d2edd5828c767f1d8d082, i32 6)
  %6 = call i1 @_FortranAioInputAscii(ptr %5, ptr nonnull @_QFEs, i64 100000)
  %7 = call i32 @_FortranAioEndIoStatement(ptr %5)
  %8 = load i32, ptr %1, align 4, !tbaa !3
  %9 = icmp sgt i32 %8, 0
  br i1 %9, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %0
  %10 = zext i32 %8 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %22
  %indvars.iv = phi i64 [ 1, %.lr.ph.preheader ], [ %indvars.iv.next, %22 ]
  %11 = add nsw i64 %indvars.iv, -1
  %12 = getelementptr [100000 x [1 x i8]], ptr @_QFEs, i64 0, i64 %11
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %sext = shl i64 %indvars.iv.next, 32
  %13 = ashr exact i64 %sext, 32
  %14 = add nsw i64 %13, -1
  %15 = getelementptr [100000 x [1 x i8]], ptr @_QFEs, i64 0, i64 %14
  %16 = call i32 @_FortranACharacterCompareScalar1(ptr %12, ptr %15, i64 1, i64 1)
  %.not = icmp eq i32 %16, 0
  br i1 %.not, label %22, label %17

17:                                               ; preds = %.lr.ph
  %18 = call i32 @_FortranACharacterCompareScalar1(ptr %12, ptr %15, i64 1, i64 1)
  %.not3 = icmp eq i32 %18, 0
  br i1 %.not3, label %22, label %19

19:                                               ; preds = %17
  %20 = load i32, ptr @_QFEcnt, align 4, !tbaa !3
  %21 = add i32 %20, 1
  store i32 %21, ptr @_QFEcnt, align 4, !tbaa !3
  br label %22

22:                                               ; preds = %19, %17, %.lr.ph
  %exitcond.not = icmp eq i64 %indvars.iv, %10
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %22, %0
  %23 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.f17a4769615d2edd5828c767f1d8d082, i32 13)
  %24 = load i32, ptr @_QFEcnt, align 4, !tbaa !3
  %25 = call i1 @_FortranAioOutputInteger32(ptr %23, i32 %24)
  %26 = call i32 @_FortranAioEndIoStatement(ptr %23)
  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 i1 @_FortranAioInputAscii(ptr, ptr, i64) local_unnamed_addr

declare i32 @_FortranACharacterCompareScalar1(ptr, ptr, i64, i64) local_unnamed_addr

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

declare i1 @_FortranAioOutputInteger32(ptr, i32) 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"}
