#include <iostream.h>
int main()
{const int n=100;
char a[101];
int i,b[n];
for(i=0;i<n;i++) cin>>a[i];
for(i=0;i<n;i++) b[i]=a[i]-'a';
if(b[0]<=5) b[0]=b[0]+26;
for(i=1;i<=n;i++) while(a[i]<a[i-1]) b[i]=b[i]+26;
for(i=1;i<=n;i++) b[i]=b[i]-b[i-1];
b[0]=b[0]-5;
for(i=0;i<n;i++) a[i]=(b[i]+'a');
for(i=0;i<n;i++) cout<<a[i]<<endl; return 0;}

You have 6 - "for"!!!
1000^6 work over second

Edited by author 28.04.2009 01:13