#include int check(int *x,int *y){ if((x[0]-x[1])*(y[1]-y[2])==(x[1]-x[2])*(y[0]-y[1])) return 0; return 1; } int main(){ int h,w,x[3],y[3],c,i,j,k; char a; scanf("%d %d",&h,&w); c=0; getchar(); for(i=0;i