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@@ -0,0 +1,34 @@
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+package main
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+
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+import (
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+ "bufio"
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+ "fmt"
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+ "os"
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+)
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+
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+func main() {
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+ var input = bufio.NewScanner(os.Stdin)
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+ var output byte
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+ for input.Scan() {
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+ line := input.Text()
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+
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+ output = firstUniqChar(line)
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+ fmt.Println(string(output))
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+ }
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+}
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+
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+func firstUniqChar(s string) byte {
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+ var record = [26]int{}
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+ for i := 0; i < len(s); i++ {
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+ var key = s[i] - 'a'
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+ record[key]++
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+ }
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+ for i := 0; i < len(s); i++ {
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+ var key = s[i] - 'a'
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+ if record[key] == 1 {
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+ return s[i]
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+ }
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+ }
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+
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+ return ' '
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+}
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