Solution of URI 1855 :: Maester's Map

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/**Bismillahir Rahmanir Rahim.**/

#include <stdio.h>
#include <string.h>
int main()
{
    int m,n,i,j,mn,x=0,k=0,l=0,M,G;
    char fao;
    scanf("%d%d", &m, &n);
    char image[n][m+1];

    for(i=0; i<n; i++)
        scanf("%s", image[i]);
    mn=m*n;
    for(M=1; M<=mn; )
    {
        if(image[k][l]=='>')
        {
            l++; M++; G=1;
            if(l>=m) break;
        }
        else if(image[k][l]=='v')
        {
            k++; M++; G=2;
            if(k>=n) break;
        }
        else if(image[k][l]=='<')
        {
            l--; M++; G=3;
            if(l<0) break;
        }
        else if(image[k][l]=='^')
        {
            k--; M++; G=4;
            if(k<0) break;
        }
        else if(image[k][l]=='*')
        {
            M=1000;
            break;
        }
        else if(image[k][l]=='.')
        {
            if(G==1)
            {
                l++; M++;
                if(l>=m) break;
            }
            else if(G==2)
            {
                k++; M++;
                if(k>=n) break;
            }
            else if(G==3)
            {
                l--; M++;
                if(l<0) break;
            }
            else if(G==4)
            {
                k--; M++;
                if(k<0) break;
            }
        }
    }
    if(M==1000) printf("*\n");
    else printf("!\n");

    return 0;
}