package main

import (
    "os"

    "github.com/01-edu/z01"
)

func main() {
    input := os.Args[1:]
    if len(input) == 3 {
        inputText := input[0]
        inputTextRune := []rune(inputText)
        firstArg := input[1]
        firstArgRune := []rune(firstArg)
        secondArg := input[2]
        secondArgRune := []rune(secondArg)

        for i := 0; i < len(inputTextRune); i++ {
            if inputTextRune[i] == firstArgRune[0] {
                inputTextRune[i] = secondArgRune[0]
            }
        }
        for _, val := range inputTextRune {
            z01.PrintRune(val)
        }
    }
    z01.PrintRune('\n')
}