#import <stdio.h>
int main(){
    char s[100002] = {'\0'};
    scanf("%s",s);
    unsigned long n = strlen(s);
    for (int i=0;i<n;i++) {
        if(i%2==0) {
            printf("%c",s[i]);
        }
    }
}

; ModuleID = '/data/TheStack_IR/OJ_Samples/Collated/ObjectiveC/Source_719/source.m'
source_filename = "/data/TheStack_IR/OJ_Samples/Collated/ObjectiveC/Source_719/source.m"
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"

@.str = private unnamed_addr constant [3 x i8] c"%s\00", align 1

; Function Attrs: nofree nounwind uwtable
define dso_local i32 @main() local_unnamed_addr #0 {
entry:
  %s = alloca [100002 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 100002, ptr nonnull %s) #6
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(100002) %s, i8 0, i64 100002, i1 false)
  %call = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %s)
  %call2 = call i64 @strlen(ptr noundef nonnull dereferenceable(1) %s)
  %cmp11.not = icmp eq i64 %call2, 0
  br i1 %cmp11.not, label %for.cond.cleanup, label %for.body

for.cond.cleanup:                                 ; preds = %for.inc, %entry
  call void @llvm.lifetime.end.p0(i64 100002, ptr nonnull %s) #6
  ret i32 0

for.body:                                         ; preds = %entry, %for.inc
  %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
  %rem15 = and i64 %indvars.iv, 1
  %cmp4 = icmp eq i64 %rem15, 0
  br i1 %cmp4, label %if.then, label %for.inc

if.then:                                          ; preds = %for.body
  %arrayidx = getelementptr inbounds [100002 x i8], ptr %s, i64 0, i64 %indvars.iv
  %0 = load i8, ptr %arrayidx, align 1, !tbaa !5
  %conv6 = sext i8 %0 to i32
  %putchar = call i32 @putchar(i32 %conv6)
  br label %for.inc

for.inc:                                          ; preds = %for.body, %if.then
  %indvars.iv.next = add nuw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %call2
  br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @putchar(i32 noundef) local_unnamed_addr #5

attributes #0 = { nofree nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nofree nounwind willreturn memory(argmem: read) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nofree nounwind }
attributes #6 = { nounwind }

!llvm.linker.options = !{}
!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"Ubuntu clang version 18.0.0 (++20231007042255+8abb2ace888b-1~exp1~20231007042414.1230)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
