/*
 Author: 曹北健(37509)
 Result: AC Submission_id: 4471391
 Created at: Fri May 20 2022 11:17:07 GMT+0800 (China Standard Time)
 Problem: 5783  Time: 1 Memory: 1628
*/

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <ctype.h>
#pragma warning(disable:4996)
typedef long long s64, LL;
typedef unsigned long long u64, ULL;
typedef const void *cvp;
int main(){
#ifdef _DEBUG
    FILE *fp = freopen("../../../input.txt", "r", stdin);
    //FILE *fp2 = freopen("../../../output.txt", "w", stdout);
#endif // _DEBUG
    char input[128] = { 0 }, tmp[128] = { 0 }, tmp2[128] = { 0 };
    int dot = 0, alpha = 0, i, num;
    LL s;
    while(fgets(input, 128, stdin)){
        alpha = 0;
        dot = 0;
        num = 0;
        for(i = 0; input[i]; i++){
            if(isalpha(input[i])){
                alpha = 1;
                break;
            }
            else if(input[i] == '.'){
                dot++;
            }
            else if(isdigit(input[i])){
                num++;
            }
        }
        //INT_MAX;//2147483647
        if(alpha || (dot >= 2) || !num){
            puts("string");
        }
        else{
            if(dot == 1){
                puts("double");
            }
            else{
                sscanf(input, "%lld", &s);
                sscanf(input, "%s", tmp2);
                sprintf(tmp, "%lld", s);
                if(strcmp(tmp, tmp2)){
                    puts("string");
                }
                else{
                    if(s <= 2147483647ll && s >= -2147483648ll){
                        puts("int");
                    }
                    else{
                        puts("long long");
                    }
                }
            }
        }
    }
#ifdef _DEBUG
    fp = freopen("CON", "r", stdin);
    //fp2 = freopen("CON", "w", stdout);
    system("pause");
#endif // _DEBUG
    return 0;
}