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(UVA) Secret Research


  Secret Research 

At a certain laboratory results of secret research are thoroughly encrypted. A result of a single experiment is stored as an information of its completion:


`positive result', `negative result', `experiment failed' or `experiment not completed'


The encrypted result constitutes a string of digits S, which may take one of the following forms:


positive result S = 1 or S = 4 or S = 78 negative result S = S35 experiment failed S = 9S4 experiment not completed S = 190S


(A sample result S35 means that if we add digits 35 from the right hand side to a digit sequence then we shall get the digit sequence corresponding to a failed experiment)


You are to write a program which decrypts given sequences of digits.

Input 


A integer  n  stating the number of encrypted results and then consecutive  n  lines, each containing a sequence of digits given as ASCII strings.

Output 


For each analysed sequence of digits the following lines should be sent to output (in separate lines):


+ for a positive result - for a negative result * for a failed experiment ?


In case the analysed string does not determine the experiment result, a first match from the above list should be outputted.

Sample Input 


4 78 7835 19078 944


Sample Output 


+
-
?
*


按照步骤就可以A,不能再水了...




#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include <iostream>
using namespace std;
char a[10010];

int main()
{
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>a;
        int m = strlen(a);
        if(strcmp(a,"1") == 0 || strcmp(a,"4") == 0 || strcmp(a,"78") == 0)
        {
            printf("+\n");
        }
        else if(a[m-1] == '5' && a[m-2] == '3')
        {
            printf("-\n");
        }
        else if(a[0] == '1' && a[1] == '9' && a[2] == '0')
        {
            printf("?\n");
        }
        else if(a[0] == '9' && a[m-1] == '4')
        {
            printf("*\n");
        }
    }
    return 0;
}






Miguel A. Revilla
2000-01-10


  Secret Research 

At a certain laboratory results of secret research are thoroughly encrypted. A result of a single experiment is stored as an information of its completion:


`positive result', `negative result', `experiment failed' or `experiment not completed'


The encrypted result constitutes a string of digits S, which may take one of the following forms:



positive result S = 1 or S = 4 or S = 78 negative result S = S35 experiment failed S = 9S4 experiment not completed S = 190S



(A sample result S35 means that if we add digits 35 from the right hand side to a digit sequence then we shall get the digit sequence corresponding to a failed experiment)


You are to write a program which decrypts given sequences of digits.

Input 


A integer  n

 stating the number of encrypted results and then consecutive  n

 lines, each containing a sequence of digits given as ASCII strings.

Output 


For each analysed sequence of digits the following lines should be sent to output (in separate lines):



+ for a positive result - for a negative result * for a failed experiment ?



In case the analysed string does not determine the experiment result, a first match from the above list should be outputted.

Sample Input 



4 78 7835 19078 944



Sample Output 



+ - ? *



Miguel A. Revilla
2000-01-10

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