（UVA） Secret Research

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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 ? for a not completed experiment

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

Sample Input

478783519078944

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