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30 lines
477 B

package main
import (
"fmt"
"os"
"github.com/01-edu/z01"
)
func main() {
if len(os.Args) != 2 {
fmt.Println()
} else {
array := []byte(os.Args[1])
for i := 0; i < len(array); i++ {
if array[i] >= 'A' && array[i] <= 'Z' {
array[i] += 32
z01.PrintRune(rune(array[i]))
} else if array[i] >= 'a' && array[i] <= 'z' {
array[i] -= 32
z01.PrintRune(rune(array[i]))
} else {
z01.PrintRune(rune(array[i]))
}
}
z01.PrintRune('\n')
}
}