Population Increase

#include<stdio.h>
int main()
{
    int m,pa,pb,year,tcase;
    float ga,gb;
    scanf("%d",&tcase);
    for(m=1; m<=tcase; m++)
    {
        year=0;
        scanf("%d %d %f %f",&pa,&pb,&ga,&gb);
        while(pa<=pb)
        {
            pa=pa+(pa*ga/100);
            pb=pb+(pb*gb/100);
            year++;
            if(year>100)
            {
                printf("Mais de 1 seculo.\n");
                break;
            }
        }
        if(year<=100)
            printf("%d anos.\n",year);
    }

    return 0;
}