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- /*
- uva - 10093
- written by shaheen
- */
- #include<iostream>
- #include<cstring>
- #include<cstdio>
- #include<cctype>
- using namespace std;
- int main()
- {
- string s;
- while(cin >> s)
- {
- int base = 2,n,sum=0;
- int len = s.length();
- for(int i=0;i<len;i++)
- {
- n=0;
- if(isdigit(s[i]))
- { n=s[i]-48;
- sum+=n;
- if(n+1>base) base=n+1;
- }
- else if(isupper(s[i]))
- { n=s[i]-'A'+10;
- sum+=n;
- if(n+1>base) base=n+1;
- }
- else if(islower(s[i]))
- { n=s[i]-'a'+36;
- sum+=n;
- if(n+1>base) base=n+1;
- }
- }
- bool flag;
- for(int j = base;n<=62;j++)
- if(sum%(j-1)==0)
- {printf("%d\n",j);
- flag=true;
- break;
- }
- if(!flag) printf("such number is impossible!\n");
- s.clear();
- }
- return 0;
- }
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