package main

import "fmt"
import "unicode/utf8"
func RCIS(params string) int {
    return utf8.RuneCountInString(params)
}
func VM(PRMS string) {
    Q := len(PRMS) // byte数で回す
    J := 0
    M := 0
    a := []int{0}
    W := 0
    for ; W < Q; W++ {
        if PRMS[W] == 'P' { 
            a[J]++
        } else if PRMS[W] == 'M' {
            a[J]--
        } else if PRMS[W] == 'Z' {
            a[J] = 0
        } else if PRMS[W] == 'S' {
            M = a[J]
        } else if PRMS[W] == 'D' {
            a[J] = M
        } else if PRMS[W] == 'R' {
            J = (J+1)%len(a)
        } else if PRMS[W] == 'A' {
            a = append(a, 0)
        } else if PRMS[W] == 'O' {
            fmt.Print(string(rune(a[J])))
        }
    }
}

func main() {
    k := "Hello"
    fmt.Println(RCIS(k))
    VM("PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPS ZARD PPPPPPPPO ZARD PPPPPO")
}