def jumpingOnClouds(c):
    jump=0
    i=0
    while(i< len(c)-2):
        
        if(c[i+2] != 0):
            jump+=1
            i+=1
            
        elif(c[i+2] == 0):
            jump+=1
            i+=2

    if(i == len(c)-1):
        return jump
    
    else:
        return jump+1