Decrease string

 #include<stdio.h>

int main()
{
    unsigned int t,inp;
    scanf("%u",&t);
    while(t--)
    {
        unsigned int temp;
        scanf("%u",&inp);
        temp = inp?1+(inp/26):0;
        inp=inp+temp;
        while(inp--)
        {

            printf("%c",'a'+(inp%26));

        }
        printf("\n");
    }

    return 0;
}

What's wrong with my code ? Please help me.