Submission #2574351

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Source Code Expand

package main

import "fmt"

func main() {
	var s string
	var i int
	fmt.Scan(&s)
	if s[0] == '1' {
		i++
	}
	if s[1] == '1' {
		i++
	}
	if s[2] == '1' {
		i++
	}
	fmt.Println(i)
}

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