Difficulty in eliminating the "\ n" as a string delimiter. (Golang) - go

Question

I'm struglling to remove the "\ n" as a string delimiter when teh string is read from the keyboard. The objective is to identify the last letter of the string received by the keyboard input.
But it turns out that he does not identify "n" as the last letter. I think that he is save the "\n" as the last input.
Test: Try to write "ian" and it will result in "not found".
Note: I already tried use the "TrimSuffix" function, but don't solved the issue.
package main
import (
"bufio"
"fmt"
"os"
"strings"
)
func main() {
str := bufio.NewReader(os.Stdin)
fmt.Println("Please enter a string:")
strReciv, _ := str.ReadString('\n')
//---------------------------------------------
s1 := strings.HasPrefix(strReciv, "i")
s2 := strings.Contains(strReciv, "a")
s3 := strings.HasSuffix(strReciv, "n")
if s1 && s2 && s3 {
fmt.Println("Found!")
} else {
fmt.Println("Not Found")
}
}

Answer 1

strings.Trim works for me, as this shows
package main
import (
"bufio"
"fmt"
"os"
"strings"
)
func main() {
str := bufio.NewReader(os.Stdin)
fmt.Println("Please enter a string:")
sin, _ := str.ReadString('\n')
strReciv := strings.Trim(sin, "\n")
//---------------------------------------------
s1 := strings.HasPrefix(strReciv, "i")
s2 := strings.Contains(strReciv, "a")
s3 := strings.HasSuffix(strReciv, "n")
if s1 && s2 && s3 {
fmt.Println("Found!")
} else {
fmt.Println("Not Found")
}
}

Answer 2

After a lot of investigation, finally worked :)
I need to remove the \r too.
package main
import (
"bufio"
"fmt"
"os"
"strings"
)
func main() {
str := bufio.NewReader(os.Stdin)
fmt.Println("Please enter a string:")
strIn, _ := str.ReadString('\n')
strReciv := strings.Replace(strIn, "\r\n", "", -1)
//---------------------------------------------
s1 := strings.HasPrefix(strReciv, "i")
s2 := strings.Contains(strReciv, "a")
s3 := strings.HasSuffix(strReciv, "n")
if s1 && s2 && s3 {
fmt.Println("Found!")
} else {
fmt.Println("Not Found")
}
}
Carriage Return
The term CRLF refers to Carriage Return (ASCII 13, \r ) Line Feed (ASCII 10, \n ). They're used to note the termination of a line, however, dealt with differently in today's popular Operating Systems.