golang实现
package main
import (
"bufio"
"fmt"
"os"
"strconv"
"strings"
)
func main() {
var num, sum int
sc := bufio.NewScanner(os.Stdin)
for sc.Scan() {
for _, str := range strings.Fields(sc.Text()) {
num, _ = strconv.Atoi(str)
sum += num
}
fmt.Println(sum)
sum = 0
}
} 
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