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#include "stdio.h"
int main()
{
    bool bSnake;
    int N, i, j, k;
    char str[200], str2[200];
    k='a'-'A';
    scanf("%d", &N);
    while(N--)
    {
        scanf("%s", str);
        bSnake=false;
        for(i=0;str[i];++i)
        {
            if(str[i]=='_')
            {
                bSnake=true;
                break;
            }
            else if(str[i]>='A'&&str[i]<='Z')
            {
                bSnake=false;
                break;
            }
        }
        if(str[i]==0)
        {
            printf("%s\n", str);
            continue;
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