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48 lines
562 B

package main
import (
"github.com/01-edu/z01"
"os"
)
func solve(str string) bool {
x := 0
y := 0
for _, c := range str {
if c == 'L' {
x--
} else if c == 'R' {
x++
} else if c == 'U' {
y++
} else if c == 'D' {
y--
}
}
if x == 0 && y == 0 {
return true
}
return false
}
func print(str string) {
for _, v := range str {
z01.PrintRune(v)
}
}
func main() {
args := os.Args[1:]
if len(args) != 1 {
z01.PrintRune('\n')
return
}
result := solve(args[0])
if result {
print("true\n")
} else {
print("false\n")
}
}