struct String{

	private string Main
        
        int length

	int indexOf(string s, int num){
            int i = 0, j = 0
            int e = StringLength(this.Main)
            int ls = StringLength(s)
            int index[]
            whilenot(i == e){
                if (SubString(this.Main, i, i + ls) == s){
                    index[j] = i
                    j++
                }
                i++
            }
            if (num > j){
                num = j
            }
            return index[num]
        }
        
        int indexOfEnd(string s, int num){
            int i = 0, j = 0
            int e = StringLength(this.Main)
            int ls = StringLength(s)
            int index[]
            whilenot(i == e){
                if (SubString(this.Main, i, i + ls) == s){
                    index[j] = i + ls
                    j++
                }
                i++
            }
            if (num > j){
                num = j
            }
            return index[num]
        }
}

    //-----------------------
    //Нахождение строки в строке
    function StringSearch takes string s1, string s2 returns boolean
    local integer i = 0
    local integer lg1 = StringLength(s1)
    local integer lg2 = StringLength(s2)
    local boolean result = false
        loop
            exitwhen i>lg1
            if SubString(s1,i,i+lg2)==s2 then
                set result= true
            endif
            set i = i + 1
        endloop
        return result
    endfunction