hdu-3079-Vowel Counting

#include<stdio.h>
#include<string.h>
int main()
{
  int n,i,j,k,t;
  char s[60];
  scanf("%d",&n);
  for(i=1;i<=n;i++)
  {
    scanf("%s",s);
 k=strlen(s);
 for(j=0;j<k;j++)
 {
  if(s[j]=='a'||s[j]=='e'||s[j]=='i'||s[j]=='o'||s[j]=='u')
   s[j]-=32;
  if(s[j]=='A'||s[j]=='E'||s[j]=='I'||s[j]=='O'||s[j]=='U')
   continue;
  else if(s[j]>=65&&s[j]<=90)
   s[j]+=32;
 }
      printf("%s\n",s);
  }
  return 0;
}